entranceRunning windows from disk. Computer location
Crashes and errors in the operation of the Windows operating system can be the result of various reasons. The most common of them are malware penetration into the computer, problems with hardware components, incorrect work programs and services, in particular, those from third-party developers. The latter reason is usually investigated after Windows has been scanned for malware and problematic drivers. If these possibilities are excluded, the next step in finding the causes of the problems is
1. What is Windows Clean Boot
Clean Boot Mode Is a special mode of operation in which Windows starts without third-party programs and services. If no errors occur when starting the computer in this mode, then the problem is caused by one of the programs or services registered in startup. The principle of operation of clean boot is similar to the mode secure boothowever, these are different modes. Windows Clean Boot allows some drivers to run, while safe mode, within which only the main system services and the driver is used, in particular, to solve problems with the latter.
Clean boot mode is configured in working windows and takes effect after reboot. In clean boot mode, the operating system is tested for the presence of those problems that occur during normal use. If these problems are not observed in clean boot mode, this means that their cause lies in the work of the programs and services that were disabled. Further work to find a specific program or service will be to test Windows with the gradual inclusion of programs and services one by one. Each of them will need to be turned on, rebooted and tested the operation of the system in order to determine by the elimination method which particular program or service is the source of the problem.
2. How to enable Windows Clean Boot Mode?
To get into clean boot mode for versions Windows 8.1 and 10, press the keys Win + R and in the service field "Run»Enter:
msconfig
We press Enter.
The system configuration window will open. Go to the tab "Services" and put a tick on the options below "Do not display Microsoft services". After that press the button "Disable all".
The task manager window will open on the desired tab... Here you need to turn off each startup object one by one. The disable option will become available when the context menu is called on each of them. Or you can use the button"Disable" at the bottom of the window.
Then you can close the task manager. Returning to the system configuration window, click the "Apply" button, then "OK".
After clicking "OK" will appear system notification with a prompt to reboot. We reboot.
For Windows 7, the procedure is slightly simplified. We get to the system configuration section in the same way as indicated for Windows 8.1 and 10 - we call the service "Will executeb "keys Win + R, enter msconfig and click Enter... But before switching to the tab "Services"In the first tab "Are common" put a tick on the item "Selective launch" and uncheck the preset item Load startup items».
Only then switch to the tab "Services", put a tick on the options below , press the button "Disable all", and then "OK".
We reboot.
3. Sequential inclusion of programs and services
The process of alternating programs and services in clean boot mode for all three windows versions - 7, 8.1 and 10 are the same. Open the configuration section in the same way as above to enable clean boot. Switch to the tab "Services" and put a tick on the options again "Hide Microsoft Services"... Then we put a checkmark on one of the services that we plan to test, click Apply", Then "OK".
We reboot.
We are testing. And so with every service.
If everything is in order with the services, you need to check one by one windows work without programs at startup. In system Windows 7 in the configuration window on the first tab "Are common" check the box back Load Startup Items in step "Selective launch".
Then switch to the tab with the button "Disable all" we remove all objects from startup, and then turn on only some of them one by one. Followed by standard set - buttons "Apply",
IN windows systems 8.1 and 10 to enable startup objects, just call the task manager ( Ctrl + Shift + Esc) and switch to the tab. Further, as we disabled the startup objects, so now we enable them - using the appropriate option in the context menu called on each of the objects, or the button "Enable" at the bottom of the window.
After rebooting, we can test the system operation without any object in startup.
4. How to disable Windows Clean Boot Mode
To disable clean boot mode, go back to the system configuration section. In any version of Windows - 7, 8.1 or 10 - on the first tab "Are common" select item "Normal start"... Next, click "Apply", "OK" and reboot.
If the startup objects were not included one by one when testing them, respectively, we return them to their original enabled state, as indicated in the previous paragraph of the article.
5. AnVir Task Manager program as an alternative or addition to clean boot Windows
If the problematic service is found during testing in Windows clean boot mode, you can disable it. If this is a problematic program, and if its use is not essential, you can get rid of it by uninstalling. In extreme cases, nothing prevents you from contacting the developer of the problematic software or looking for a solution on specialized sites and forums. But it may also happen that during the clean boot mode Windows problem will not be found. After all, in the clean boot mode, as mentioned, drivers and system services will still work. In this case, you can resort to help free software AnVir Task Manager.
AnVir Task Manager is a functional program that includes many different functions; this is a system tweaker, an advanced task manager, and an auto windows boot with the display of all, even detailed objects such as DLLs and the ability to manage them. The autoload functionality in the AnVir Task Manager view can be used either as an alternative to clean boot mode, or as an additional tool in case no problems are identified during the latter.
In the window running program AnVir Task Manager switch to the tab, click the section "All records" and we will see, in fact, everything that is loaded along with Windows - programs, services, drivers, codecs, DLLs, etc. To disable this or that object from startup, click it, call context menu and choose "Disable (Quarantine)".
Then we reboot and test the Windows operation. To enable a disabled startup object, if it is not the source of problems, you can do it in the opposite way - call the context menu on it and click "Allow".
Download AnVir Task Manager in its free edition Free is available on the official website of the program
http://www.anvir.com/
In some moment operating system have to change. Perhaps some of you, dear readers, have finally decided to upgrade to a faster Windows 8, or there was an unexpected OS crash. In any case, if you do not know how to start a disk with Windows through BIOS, then this article will be an invaluable help in solving this kind of difficulty.
Basic I / O System - It All Starts Here
To install the operating system, you need to use some settings of the BIOS microsystem. In particular, it is required to set a priority bootloader, in our case that will be a drive for optical CD / DVD disks.
However, first we need to get into bIOS interface programs. In view of the difference in the basic microsystems, the main manufacturers of which are the three leading companies - American Megatrends, Inc. (AMI), Award Software and Phoenix Technologies - a special method of entering the BIOS workspace (a) may be provided.
The most common access scheme is to use the DELITE and F2 keys. At the time of starting the computer, you need to use the service key several times (with the intensity of one press in half a second) to enter the PC control interface (if you have a laptop, then you should pay your attention to the article that is ).
Setting the CD / DVD drive as the priority bootloader
It makes sense to consider the above BIOS versions separately. Rather, using each of them as an example, we will show you where to go and what needs to be done in a certain place of the BIOS microsystem. As a result, you will understand the algorithm according to which the assignment is performed specific device priority bootloader.
How to start a disk with Windows through AMI BIOS
- Using the left / right keys, open the "Boot" tab.
- Press the "Enter" button on the first item "Boot Device Priority".
- In the first position, you must put the drive for optical discs - being on the first item, use the "Enter" key to call the boot device selection menu.
- Set to "CD-ROM".
- Go to the "Exit" tab and use the "Exit & Save Changes" item.
- Confirm your intention to save the settings by pressing the "OK" button.
Choosing to boot from the drive to Award and Phoenix BIOS
- Activate the Advanced BIOS Features tab.
- Select the item "First Boot Device" and press the "Enter" button.
- Select "CDROM" from the list of bootable devices and press "Enter" again.
- Use the "F10" key and confirm your consent to change the settings.
Quick Launch Menu
Literally all BIOS systems provide for the so-called " Boot menu", Which can be accessed at the initial stage of OS boot. From the material you read above, you learned that the versions of the basic microsystems are different, and therefore the script for entering the quick boot menu may differ for each computer manufacturer. Moreover, in laptops for such purposes, a special remote button is sometimes implemented (read ).
As a rule, to call the "Boot menu" you need to intensively press the "F12" or "Esc" key during the passage computer system initialization process (POST hardware check). In other cases, it is possible that the manufacturer used a different keyboard access scheme (for more details about this point, see ).
In conclusion
So, now it is not a secret for you how to start a disk with Windows through BIOS. You can easily repeat all of the above in practice on your own. However, do not forget that the disk with Windows distribution kitmust be bootable first of all. However, if something still does not work for you and you decide to use a regular USB flash drive, then read the recommendations from ... Happy download to you!
After installing several operating systems on a computer, for example, Vista and Windows 7, the initial settings of the boot menu get confused, leading to the fact that each time you start the PC, you have to choose which OS to boot from and which options to apply. The process, let's say, is unpleasant, since it takes a lot of time. In this case, restoring the original appearance of the boot menu by editing the order of starting systems in the Windows boot loader will help to get the situation back on track. Moreover, it can be done in more than one way.
Option number 1: Debugging through the "System" control panel
In order to start the restore process and remove additional boot options from the Windows bootloader using this method, you first need to enter the "System" section. This can be done in different ways:
In any case, the "System" window will appear on the screen. In it we find and select the section “ Extra options systems ", and then click in the appeared system window opposite the" Startup and Recovery "tab the" Options "button:
As a result, users are provided with the following opportunities:
- change the order of starting operating systems by choosing the OS that boots by default;
- determine the waiting time (timeout) before starting the system;
- remove the display of the list of available operating systems in the boot menu:
Perhaps it is easy to notice that the advantage of this method is the simplicity and speed of solving the problem with editing the boot menu. However, it would hardly be logical to deny that it can be used to determine only the most basic parameters. windows startup.
Option # 2: Setup using the System Configuration utility
Remove from bootloader Windows are superfluous variants of operating systems installed on the computer are also possible by editing the settings in the System Configuration utility. You can open it using different methods:
One way or another, after the system window "System Configuration" appears on the monitor screen, to restore standard method to start Windows, you will need to enter the "Download" section. Here, in particular, you can make settings such as:
- remove unnecessary entry from the Windows bootloader;
- assign one OS to run by default;
- set a timeout at system startup;
- set maximum memory, number of executable processes, PCI lock:
Thanks to the simple and clear interface utilities, the process of performing each of these actions is not difficult. For example, in order to remove an unnecessary OS from the launch menu, just click on it with the mouse and press the "Delete" button. Accordingly, in the "Timeout" section, the delay time for the system start is set, and so on.
Option # 3: Restore default settings via bcdedit.exe command
Recovery process standard load on a computer, the OS can also be launched by running the bcdedit.exe utility. It is located in the Windows \\ System32 folder, but you can run it only with administrator rights via command line.
For this, the easiest way, of course, is to use search baravailable from the Start menu. In this case, the procedure will be as follows:
- go to "Start" and set the word cmd for search;
- right-click on the displayed result in the list of programs and define for it "Run as administrator":
After the "Command line" opens, first of all, you should take care of saving backup bootloader for later access to fast data recovery. To do this, create the BCDREZ folder on the C drive, and then drive the value bcdedit / export C: \\ BCDREZ \\ bcd into the command line and press Enter... In the future, to undo all changes and restore basic settings it will be enough to use the bcdedit / import C: \\ BCDREZ \\ bcd command.
Hello friends! In today's article, we will re-create the Windows 7 bootloader. In what cases it may come in handy.For example, you do not boot Windows 7 and gives errors related to a malfunction of the bootloader, for example: "An operating system was not found"(Operating system not found),BOOTMGR is missing. Press ctrl + alt + del, NTLDR is missing when booting Windows 7. Or maybe you transferred Windows 7 from hard disk on solid state drive, but the system does not start from the SSD and displays an error or shows a black screen.You are trying to restore the boot of the operating system, but it fails.In such cases, you need to delete and then recreatehidden section - System Reserved (Reserved by the system, volume 100 MB), this is the section where the Windows 7 boot files are located.
When windows installation 7 to a laptop or computer with a regular BIOS ( hDD MBR), a hidden System Reserved partition is automatically created, the purpose of which is to store and protect the operating system boot files.This section always has the attributes: (Active, System, Main section), and from it the operating system installed on your computer starts.
If you assign a drive letter to this partition and in the folder options (view) set the "Show hidden files"and uncheck the" Hideprotected system files", then inside you will see the" Boot "folder (containing the boot configuration storage file - BCD), and the boot manager file" bootmgr ".
For the success of our business, let's remember the Windows 7 boot mechanism and the program will help usBOOTICE.
First of all, after turning on the computer, control is received by the BIOS subroutine, which checks the operability of all components system unit, then the BIOS looks in its settings with a priority device for loading (hard disk, flash drive, DVD) and, having found such (for example, a hard disk) reads from it boot record MBR (Windows 7 is usually installed on an MBR partitioning disk).
MBR is located in the first sector boot disk, is 512 bytes in size, and contains program code NT 6.x,
Which searches for the active partition (Active) from which the operating system can be loaded, this active partition After that, control passes
The operating system (in our case, Windows 7) is a program and for it to work (start loading) you need to run the OS executable file:winload.exe or winload.efi. Zthe bootloader starts these files. Zthe loader is a small program. Filewinload.exe launchesMBR- the loader, and the filewinload.efi starts the EFI bootloader. Windows 7 is in most cases installed on a disk with an MBR bootloader.
Windows 7 boots up in the following sequence,boot managerfile "bootmgr" processes the available information in the boot store (BCD file), and this is the menu, display time, list of operating systems (if there are several), and so on, if the data is correct, then the operating system is loaded. But! If at least one of the files I mentioned (bootmgr or BCD) turns out to be incorrect or completely absent, then we are guaranteed problems when loading the system.It often happens that the integrity of these files is violated for any reason (careless user actions, installation of third-party boot managers, viruses, etc.), in this case, the standard actions to restore the bootloader may not help, and then it is best to delete this section completely, then format and re-create the boot files. How can I do that.
We delete the hidden System Reserved partition (Reserved by the system, volume 100 MB) and recreate it using the built-in systemdiskpart command line utilities
Boot from the Windows 7 installation flash drive. If you don't find the ISO image of the 7, you can use the download. uSB flash drive 8.1 or Win 10.
In the initial window of the system installation, open the command line with the keyboard shortcut Shift + F10.
We enter the commands sequentially:
diskpart
lis vol (this command displays letters, numbers, labels, size and file system... Bsection ukva 100 mb (C :). Volume 1.Bsection letter with installed Windows 7 - (D :).
sel vol 1 ( the choice of the volume with which we will work -100 mb (C :). Volume 1)
del vol ( delete volume 100 mb).
after deleting the volume, an unallocated area of \u200b\u200b100 mb appeared on the disk.
creat par prim ( create a main partition in this unallocated area)
format fs \u003d ntfs ( create the NTFS file system on the partition)
assign letter С ( assign the letter C to the created section)
activ ( make the section active)
exit (exit diskpart)
bootsect / nt60 C: / mbr (given command writes to hard disk required codes PBR (Bootmgr) and MBR (NT 6.x))
bcdboot D: \\ windows / s C: ( create a bootloader for Windows 7 located on (D :),bootloader location (C :))
The download files have been successfully created.
This method suitable for those who have several hard drives, and they have an OS with a bootloader installed.
On these diskswe don't usebootrec / fixmbr and bootrec / fixboot toolsto update the MBR and PBR codes. These commands only work with hard disk 0.
The bootsect command works with the disk we specify. T the same goes for bcdboot.Without the / s option, bcdboot works with the active partition on hard disk 0. Andthe / s parameter we use points to the active partition of the desired hard disk.
Most often, we remember about BIOS (Basic Input / Output System) only when we need to reinstall the operating system and need to somehow set it to boot from a disk or flash drive. I often wrote about this in articles like:, and others. Now I want to put together and refer only to this article when necessary. This article will be useful for all versions of BIOS and for different companies. Sort of unified directory
The first thing you need to know is that BIOS is divided by manufacturer and version.
To change boot method in BIOS - you must first enter it.
You can, of course, find out which version and manufacturer of your BIOS, from the manual that comes with the computer.
You can also find out by looking at the line at the top of the black screen at boot (the manufacturer will be indicated there).
Well, then enter the BIOS, knowing what kind of BIOS you have.
In some versions of the BIOS there is no such screen showing lines. There simply is a logo and at the bottom it says something like "Press F2 to enter SETUP" and then press F2. If there is just a logo and there are no inscriptions - press ESC, and then del or f2
Here is a small list of manufacturers and keyboard shortcuts for entering BIOS:
Also, at the bottom of the black screen, the keys are written to enter the BIOS and to display the list that contains available devices to download and so that you can boot from it. But about him at the end of the article.
As you can see - most often you need to press a key F2 or Del.
Now you need to put a USB flash drive or disk in the boot.
Let's take a look at a few examples that differ from the BIOS manufacturer.
Setting up Award Bios for booting from a USB stick or disk:
The main window looks like this, in which we need the second item:
Further depends on the firmware version. In one case, you will need to go to an item similar to "Boot Seq & Floppy Setup"
otherwise, you don't need to go anywhere - everything will be right before your eyes
Click on First Boot Device (First boot device), click Enter and such a window will appear
in which you need to select the disk or flash drive that will be launched first. You can specify the Second boot device, for example, but usually the BIOS fills in this data itself.
On a note:
If you choose a USB flash drive, then, among other things, you also need to go to the item " Hard disk Boot Priority "and move our flash drive to the very top using the" + "and" - "or" PageUp "and" PageDown "buttons:
It is also worth remembering that in order for the BIOS to see the USB flash drive, it must be connected before turning on or before rebooting
Then press "F10" (for the exact key, see the prompt at the bottom of the screen with the name "Save", "Exit") or go to the main BIOS menu and select the item "Save and Exit Setup". In the red window, select "Yes" with the "Y" button on the keyboard and press "Enter"
The computer will reboot and when booting from installation disk with Windows, you may be prompted for a few seconds "Press any key to boot from CD or DVD ..."
Which translates as "Press any button to boot from CD or DVD".
This means that if at this moment you do not press any button on the keyboard, the computer will continue to boot from the next device in the list.
Another kind of this bios:
I only met this on old computers ten years ago until 2003. The main menu looks like this:
To customize the boot order, you need to go to the menu BIOS FEATURES SETUP:
At this point, we just select with the PageUp and PageDown buttons (or Enter and arrows) what to put first - CDROM or USB flash drive. Don't forget about the second and third device
And further:
How to choose where to boot from in AMI BIOS
If, upon entering BIOS, you see such a screen, then you have AMI BIOS:
Use the "right arrow" button on the keyboard to move to the Boot tab:
Go to "Hard Disk Drives" and in the line "1st Drive" (may be called "First Drive") select a disk or flash drive:
Next, go to "Boot Device Priority", go to "1st Boot Device" and select from the list what you have selected in the previous tab (ie if you have selected a USB flash drive in Hard Disk Drives, then you need to specify it here too. This is important! )
To boot from a CD / DVD disk, you need to select "ATAPI CD-ROM" (or simply "CDROM") in this menu, and there is no need to go to the previous menu "Hard Disk Drives".
Now we save the results by pressing "F10" or go to the BIOS section "Exit" and select "Exit Saving Changes".
Another AMI BIOS, but everything is clear here:
Configuring Phoenix-Award Bios to Boot from a USB Flash Drive
If, entering Bios, you see such a screen, then you have Phoenix- Award BIOS:
We go to the “Advanced” tab and opposite the “First Boot Device” set what you need (USB flash drive or disk):
Save with F10
EFI (UEFI) Bios setup with graphical interface to boot from a USB stick
Now you won't surprise anyone with this. Almost all new computers come with this kind of shell. You can read more about it in the article.
When loading, at the bottom of the screen there is a section "Boot Priority", where you can use the mouse (drag and drop) pictures to set the desired boot order.
You can also click the “Exit / Advanced mode” button in the upper right corner and select Advanced mode in the window that appears.
Next, go to the "Boot" tab and in the section Boot Option Priorities in the "Boot Option # 1" field, set the default boot device to a USB flash drive, DVD-ROM, hard disk or other available device.
How to boot from a USB flash drive or disk without entering BIOS
This is what I wrote about almost at the very beginning of the article.
This is when you need to press a key once and a window with a choice of loading will appear. This method does not change the BIOS settings.
Usually Award BIOS offers to press "F9" to call the boot menu, and AMI asks to press "F8". On notebooks, this may be the "F12" key.
In general - look at the bottom line and look for items like "Press F8 for BBS POPUP" or "Press F9 to Select Booting Device after POST".
Why can't I boot from a USB flash drive in BIOS?
Possible reasons: 
On ancient computers, there is no way to boot from USB sticks at all. If there is no newer BIOS, then the project can help.
1) Download from the link above latest version "Plop Boot Manager" and unpack it.
2) The archive contains files: plpbt.img - an image for a floppy disk, and plpbt.iso - an image for a CD-ROM.
3) We write the image to disk and boot from it (or from a floppy disk).
4) A menu will appear in which we select our USB flash drive and boot from it.
Small decoding of drive designations when choosing:
Do not forget after you have done what you wanted (namely, why did you change the boot in the BIOS) - return the boot settings back so that the computer boots from the hard drive.