Remove an installed Windows update
If you've recently installed a Windows update, uninstall the update to try to resolve the issue.
Select the Start button, then select Settings > Update & Security > Windows Update > View your update history > Uninstall updates.
Right-click the update you want to remove, and then select Uninstall.
Reset your PC
Important: If you’ve encrypted your device, you’ll need your BitLocker key to reset your PC If you don’t know your BitLocker key, see Find my BitLocker recovery key.
Resetting reinstalls Windows 10, but lets you choose whether to keep your files or remove them, and then reinstalls Windows. You can reset your PC from Settings, the sign-in screen, or by using a recovery drive or installation media.
Reset your PC from Settings
Select the Start button, then select Settings > Update & Security > Recovery .
Under Reset this PC, select Get started and then choose from the options and/or settings in the table below.
Use installation media to reinstall Windows 10
Connect the installation media you created to your PC and reinstall Windows 10.
Open File Explorer and select the drive with the installation media.
From the root directory of the drive, double-click setup.exe, and then select Yes when asked if you’d like to allow the app to make changes to your device.
Select Change what to keep.
Select one of the following options, and then select Next:
Keep personal files and apps – This will preserve your personal data, apps, and settings.
Keep personal files only – This will preserve your personal data and settings, but all your apps will be removed.
Keep nothing – This will remove all personal data, settings, and apps.
Warning: You cannot undo a reinstallation of Windows 10. Be sure to back up your files first if you choose the Keep nothing option.
To finish, select Install to start reinstalling Windows 10 on your PC.
Your PC will restart several times during the resinstallation.
Use installation media to restore your PC
Important: If you’ve encrypted your device, you’ll need your BitLocker key to use a recovery drive to restore or reset your PC If you don’t know your BitLocker key, see Find my BitLocker recovery key.
If your PC won't start and you haven't created a recovery drive, download installation media and use it to restore from a system restore point or reset your PC.
On a working PC, go to the Microsoft software download website.
Download the Windows 10 media creation tool and then run it.
Select Create installation media for another PC.
Choose a language, edition, and architecture (64-bit or 32-bit).
Follow the steps to create installation media, and then select Finish.
Connect the installation media you created to your nonfunctional PC, and then turn it on.
On the initial setup screen, enter your language and other preferences, and then select Next. If you don't see the setup screen, your PC might not be set up to boot from a drive. Check your PC manufacturer's website for info on how to change your PC's boot order, and then try again.
Select Repair your computer.
On the Choose an option screen, select Troubleshoot. From there, you can:
Restore from a system restore point by selecting Advanced options > System Restore. This will remove recently installed apps, drivers, and updates that might be causing your PC problems. Restoring from a restore point won’t affect your personal files.
Use a recovery drive to restore or recover your PC
Important: If you’ve encrypted your device, you’ll need your BitLocker key to use a recovery drive to restore or reset your PC If you don’t know your BitLocker key, see Find my BitLocker recovery key.
If your PC won’t start, you can use a recovery drive to restore from a system restore point or recover your PC. For info on how to create a recovery drive on a working PC, see Create a recovery drive.
Note: If you are using a Surface, see Creating and using a USB recovery drive for Surface to download and create a USB recovery image specifically for your Surface device.
To restore or recover using the recovery drive:
Connect the recovery drive and turn on your PC.
Press Windows logo key + L to get to the sign-in screen, and then restart your PC by pressing the Shift key while you select the Power button> Restart in the lower-right corner of the screen.
Your PC will restart in the Windows Recovery Environment (WinRE) environment.
On the Choose an option screen, select Troubleshoot, and then select one of the following two options. (If you don’t see the Choose your option screen, your PC might not be set up to boot from a drive. Check your PC manufacturer’s website for info on how to change your PC’s boot order.)
To restore from a system restore point, select Advanced Options > System Restore. This won't affect your personal files, but it will remove recently installed apps, drivers, and updates that might be causing your PC problems.
To reinstall Windows 10, select Advanced Options > Recover from a drive. This will remove your personal files, apps and drivers you installed, and changes you made to settings.
Go back to your previous version of Windows
For a limited time after upgrading to Windows 10, you’ll be able to go back to your previous version of Windows by selecting the Start button, then select Settings > Update & Security > Recovery and then selecting Get started under Go back to the previous version of Windows 10. This will keep your personal files, but it'll remove apps and drivers installed after the upgrade, as well as any changes you made to settings. In most cases, you'll have 10 days to go back.
To go back, you'll need to:
Keep everything in the windows.old and $windows.~bt folders after the upgrade.
Remove any user accounts you added after the upgrade.
Know the password you used to sign in to Windows 7 or Windows 8.1 (if you used one).
Have the USB drive you used to upgrade to Windows 10 (if you used one).
Note: If you go back to Windows 8.1, some apps that came with Windows, like Mail and People, might not work anymore. To fix the apps, reinstall them from the Microsoft Store.
Note: The option in Settings to go back to your previous version of Windows is only available for a limited time after upgrading.
Info for Windows Insiders
If you’re an Insider and the current preview build isn’t working for you, select the Start button, then select Settings > Update & Security > Recovery . Under Go back to the previous version of Windows 10, select Get Started. This won’t remove your personal files, but it’ll remove recently installed apps and drivers, and change settings back to their defaults.
Going back to an earlier build won’t remove you from the Insider Program. When the next preview build is ready, it'll be installed on your PC.
Restore from a system restore point
This option takes your PC back to an earlier point in time, called a system restore point. Restore points are generated when you install a new app or driver, and when you create a restore point manually. Restoring won’t affect your personal files, but it will remove apps, drivers, and updates installed after the restore point was made.
In the search box on the taskbar, type control panel,andthen choose it from the list of results
In the Control Panel search box, type recovery.
Select Recovery > Open System Restore.
In the Restore system files and setting box, select Next.
Select the restore point that you want to use in the list of results, and then select Scan for affected programs.
Notes:
If you don’t see the restore point that you want to use, select the Show more restore points check box to see more restore points.
If you’re not seeing any restore points, it might be because system protection isn’t turned on. Here’s how to check:
In the search box on the taskbar, type control panel,andthen choose it from the list of results.
In the Control Panel search box, type recovery.
Select Recovery > Configure System Restore > Configure and see if the Turn on system protection option is selected.
If the Turn on system protection option is not selected, system protection isn’t turned on and there aren't any restore points. In this scenario, you won't be able to recovery your PC using a system restore point and will need to use one of the other recovery options listed on this page.
If the Turn on system protection option is selected, continue with step 6.
You'll see a list of items that will be deleted if you remove this restore point. If you're OK with the deletions, select Close> Next > Finish.