Advanced startup options (including safe mode)

The Advanced Boot Options screen lets you start Windows in advanced troubleshooting modes. You can access the menu by turning on your computer and pressing the F8 key before Windows starts.

Some options, such as safe mode, start Windows in a limited state, where only the bare essentials are started. If a problem doesn’t reappear when you start in safe mode, you can eliminate the default settings and basic device drivers and services as possible causes. Other options start Windows with advanced features intended for use by system administrators and IT professionals. For more information, go to the Microsoft website for IT professionals.

Repair Your Computer

Shows a list of system recovery tools you can use to repair startup problems, run diagnostics, or restore your system. This option is available only if the tools are installed on your computer’s hard disk. If you have a Windows installation disc, the system recovery tools are located on that disc.

Safe Mode

Starts Windows with a minimal set of drivers and services.

To start in safe mode:

Remove all floppy disks, CDs, and DVDs from your computer, and then restart your computer. Click the Start button , click the arrow next to the Shut Down button (or the arrow next to the Lock button), and then click Restart.

Do one of the following:

If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You need to press F8 before the Windows logo appears. If the Windows logo appears, you’ll need to try again by waiting until the Windows logon prompt appears, and then shutting down and restarting your computer.

If your computer has more than one operating system, use the arrow keys to highlight the operating system you want to start in safe mode, and then press F8.

On the Advanced Boot Options screen, use the arrow keys to highlight the safe mode option you want, and then press Enter.

Log on to your computer with a user account that has administrator rights.

Safe Mode with Networking. Starts Windows in safe mode and includes the network drivers and services needed to access the Internet or other computers on your network.

Safe Mode with Command Prompt. Starts Windows in safe mode with a command prompt window instead of the usual Windows interface. This option is intended for IT professionals and administrators.

Enable Boot Logging. Creates a file, ntbtlog.txt, that lists all the drivers that are installed during startup and that might be useful for advanced troubleshooting.

Enable low-resolution video (640×480). Starts Windows using your current video driver and using low resolution and refresh rate settings. You can use this mode to reset your display settings. For more information, see Change your screen resolution.

Last Known Good Configuration (advanced). Starts Windows with the last registry and driver configuration that worked successfully.

Directory Services Restore Mode. Starts Windows domain controller running Active Directory so that the directory service can be restored. This option is intended for IT professionals and administrators.

Debugging Mode. Starts Windows in an advanced troubleshooting mode intended for IT professionals and system administrators.

Disable automatic restart on system failure. Prevents Windows from automatically restarting if an error causes Windows to fail. Choose this option only if Windows is stuck in a loop where Windows fails, attempts to restart, and fails again repeatedly.

Disable Driver Signature Enforcement. Allows drivers containing improper signatures to be installed.

Start Windows Normally. Starts Windows in its normal mode.

Fix problems with the Start menu

If you can’t see Start on your taskbar, the taskbar may be hidden.

Show a hidden taskbar

Press the Windows logo key + I, then select Personalization > Taskbar .

Turn on Lock the taskbar.

Turn off Automatically hide the taskbar in desktop mode or Automatically hide the taskbar in tablet mode.

If that doesn’t resolve the issue you’re experiencing, select any of the following headings to see steps you can try to get it working again.

Press Ctrl + Shift + Esc to open Task Manager. You may need to select More details at the bottom of the window to see everything.

Select the Processes tab.

Scroll down to Windows Explorer, select it, then select Restart.

The process may take a few seconds, and your taskbar and Start menu may not be visible while Windows Explorer restarts. You can close Task Manager when the process is complete.

Press the Windows logo key + I.

In Settings, choose Update & security > Windows Update , and then select Check for updates. Install any available updates and restart your computer if required.

Note: Need another way to get to Settings? Press the Windows logo key + R, then type ms-settings: (note the colon) in the Open box. Select OK to open Settings.

If you didn’t have any updates that required a restart, it’s still a good idea to restart your device to make sure any pending updates are installed.

To restart your device when you can’t access Start , press Ctrl + Alt + Delete, select Power and then select Restart .

Note: You can also manually shut down your device by pressing and holding the power button. Shutting down this way risks losing unsaved data, so first be sure to save and close everything you’re working on. If you shut down this way, you can restart your device by pressing the power button again.

While it’s likely you have the most recent drivers, if you’re still having trouble with the Start menu, you can try fixing it by manually updating your graphics or audio drivers. For more info, see Update drivers in Windows 10.

If you still can’t fix your problem with the Start menu, try creating a new local administrator account.

If you’re signed in with your Microsoft account, remove the link to that account first by doing the following (if that’s not how you’re signed in, skip to creating a new administrator account):

Press the Windows logo key + I.

In Settings, select Accounts > Your info (in some versions, it may be under Email & accounts instead).

Select Sign in with a local account instead. You’ll see this link only if you’re using a Microsoft account, and you may not see it if your device is on a network.

Type your Microsoft account password and select Next.

Choose a new account name, password, and password hint, and then select Finish and sign out.

Create the new administrator account:

Press the Windows logo key + I.

In Settings, select Accounts > Family & other people (or Other users , if you’re using Windows 10 Enterprise).

Under Other users , select Add someone else to this PC.

On Windows 10 Home and Windows 10 Professional, provide a name for the user and a password, and then select Next. On Windows 10 Enterprise, select I don’t have this person’s sign-in information, and then select Add a user without a Microsoft account.

Set a user name, password, and password hint. Then select Next > Finish.

Next, make the new account an administrator account:

Under Family & other people (or Other users , if you’re using Windows 10 Enterprise), choose the account you created, and then select Change account type.

Under Account type, select Administrator > OK.

Sign out of your account and then sign in to your new account. If everything is fixed, move your personal data and files to the new account.

To move your personal files from your old account to your new account, try opening File Explorer, expanding This PC > OSDisk (C:), and looking in the Users folder, where you should see folders for both accounts. You can then copy and paste your files from the old account folder to similar locations in the new account folder. Or if you prefer, you can upload your files from your old account to OneDrive, and then sign into the new account and download the files from OneDrive.

If the problem still isn’t fixed, try deleting the old administrator account:

Under Other users, select the old administrator account, then select Remove > Delete account and data.

After the old account is removed, restart your device and sign in with the new account again.

If you were using a Microsoft account to sign in before, associate the Microsoft account with the new administrator account.

In Settings , select Accounts > Your info (in some versions, it may be under Email & accounts instead).

Select Sign in with a Microsoft account instead and enter your account info. You’ll see this link only if you’re using a local account, and you may not see it if your device is on a network.

Note: Need another way to get to Settings? Press Windows logo key + R, then type ms-settings: (note the colon) in the Open box. Select OK to open Settings.

If none of the previous options work, try resetting your PC using Recovery options in Windows 10.

Windows Startup Settings (including safe mode)

With Windows Startup Settings you can start Windows in different advanced troubleshooting modes to help you find and fix problems on your PC.

Get to Windows Startup Settings in PC settings

Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings.
(If you’re using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, click Settings, and then click Change PC settings.)

Under PC settings, tap or click Update and recovery, and then tap or click Recovery.

Under Advanced startup, tap or click Restart now.

Once your PC restarts, on the Choose an option screen, tap or click Troubleshoot. If you don’t see the Startup Settings option, tap or click Advanced options.

Tap or click Startup Settings and then Restart.

On the Startup Settings screen, choose the startup setting you want.

Sign in to your PC with a user account that has administrator rights.

Get to Windows Startup Settings in the Windows Recovery Environment

If you can’t start your PC, follow these instructions to get to the Windows Recovery Environment. You’ll need to connect a keyboard to complete the steps.

Do one of the following, depending on whether you have installation media (such as a DVD or USB flash drive):

If you have installation media for Windows 8.1, start your computer from the installation media. Insert the DVD or USB flash drive and restart your computer. If you see a message asking you to “Press any key to boot from DVD,” do so. If you don’t see the message, you might need to change the boot order in your computer’s BIOS settings so that it first starts from the DVD or USB. When you see the Install Windows page, tap or click Repair your computer to start the Windows Recovery Environment.

If you don’t have installation media, use the power button to restart your computer three times. This will start the Windows Recovery Environment.

In the Windows Recovery Environment, on the Choose an option screen, tap or click Troubleshoot.

Tap or click Startup Settings. If you don’t see Startup Settings, tap or click Advanced options, and then tap or click Startup Settings.

Tap or click Restart, and then wait while your computer restarts.

On the Startup Settings screen, choose an option.

Sign in to your computer with a user account that has administrator rights.

Some options, such as safe mode, start Windows in a limited state where only essential programs are started. Other options start Windows with advanced features (typically used by system admins and IT pros). For more info, go to the Microsoft TechNet website for IT pros.

Note: If you’re using BitLocker, you’ll need to suspend it before you can get to Windows Startup Settings. If you’re using Windows RT 8.1, you may be asked to enter your Device Encryption recovery key to get to the Startup settings.

Starts Windows in an advanced troubleshooting mode intended for IT pros and system admins.

Creates a file, ntbtlog.txt, that lists all the drivers that are installed during startup and that might be useful for advanced troubleshooting.

Starts Windows using your current video driver and using low resolution and refresh rate settings. You can use this mode to reset your display settings.

Safe mode starts Windows with a minimal set of drivers and services to help troubleshoot issues. If a problem doesn’t reappear when you start your PC in safe mode, you can eliminate the default settings and basic device drivers and services as possible causes. There are three different safe mode options:

Enable Safe Mode. Starts Windows with a minimal set of drivers and services.

Enable Safe Mode with Networking. Starts Windows in safe mode and includes the network drivers and services needed to access the Internet or other computers on your network.

Enable Safe Mode with Command Prompt. Starts Windows in safe mode with a Command Prompt window instead of the usual Windows interface. This option is intended for IT pros and system admins.

If the problem doesn’t occur when you restart your PC in safe mode, it’s unlikely that the basic settings, files, and drivers in Windows are the cause of the problem. Try starting all of the apps on your desktop that you commonly use one by one (including the apps in your Startup folder) to see if a specific app might be causing the problem. If one of the apps is causing the problem, uninstall it or contact the software publisher. If the problem appears while in safe mode, or you still can’t find the problem, you can try refreshing or resetting your PC. For more info, see How to refresh, reset, or restore your PC.

Ошибка установки Windows 10 : Компьютер неожиданно перезагрузился или возникла непредвиденная ошибка. Решение.

В некоторых случаях во время чистой установке системы, выполнении обновления предыдущей версии Windows или при установке очередного билда (версии) Windows 10 может появиться ошибка « Компьютер неожиданно перезагрузился, или возникла непредвиденная ошибка. Невозможно продолжить установку Windows ». При нажатии кнопки OK, компьютер опять перезагружается, и снова появляеться окно с этой же ошибкой, и так по кругу… Что делать в таком случае, как продолжить установку Windows 10?

Данная проблема может появится после очередной перезагрузки системы в процессе одного из этапов установки (или обновления) ОС и выглядит следующим образом:

В русской версии Windows 10: Компьютер неожиданно перезагрузился, или возникла непредвиденная ошибка. Невозможно продолжить установку Windows. Чтобы установить Windows нажмите кнопку «ОК» для перезагрузки компьютера, а затем перезапустите установку.

В английской:The computer restarted unexpectedly or encountered an unexpected error. Windows installation cannot proceed. To install Windows, click “OK” to restart the computer, and then restart the installation.

Как я уже говорил, при появлении этой ошибки не помогает ни нажатие на кнопку OK, ни повторный запуск установки системы – ошибка все равно зацикливается.

Чтобы исправить проблему нужно:

• Прямо на экране с ошибкой нажать сочетание клавиш Shift + F10

В открывшемся окне командной строки нужно запустить редактор реестра, выполнив команду regedit

• В окне редактора нужно перейти в раздел HKEY_LOCAL_MACHINE\SYSTEM\Setup\Status\ChildCompletion

В правой панели нужно найти параметр setup.exe . Скорее всего он равен 1. Меняем его значение на 3 и сохраняем изменение. Примечание. Тем самым мы принудительно указываем установщику Windows, что нужно перейти на следующую фазу установки системы.

• Нужно закрыть редактор реестра и перезагрузить компьютер коммандой: shutdown -r -t 0

После перезагрузки процесс установки/обновления Windows 10 должен нормально продолжиться.

Данная проблема характерна не только для Windows 10. Этот способ решения проблемы с прерванной установки системы одинаково эффективно работает и Windows 7 и Windows 8.1