Troubleshoot blue screen errors

A stop error (also called a "blue screen" error) can occur if a problem causes your PC to shut down or restart unexpectedly. You might see a blue screen with a message that your PC ran into a problem and needs to restart.

The steps in this article are intended to help troubleshoot common stop error codes, such as 0x0000000A, 0x0000003B, 0x000000EF, 0x00000133, 0x000000D1, 0x1000007E, 0xC000021A, 0x0000007B, 0xC000000F, and more.

The article doesn't contain a list of all error codes, but since many error codes have the same potential resolutions, your best bet is to follow the steps below to troubleshoot your error.


Some stop errors occur after a specific update or driver is installed on your PC. Fixing the error depends on getting to the desktop.

It's not always obvious what may have caused a stop error. On older PCs, it may be that hardware is malfunctioning. If this is the case, try to fix the error using these steps.
If you see a stop error while you are upgrading to Windows 10, setup will automatically go back to your previous version of Windows.
If you still see the error, try the following steps:

Contact us via our virtual support agent. If you've upgraded to Windows 10, you can also use the Get Help app to contact us. Select the Start button, then select Get Help.