How to Reset Windows 10 or 11 via Windows RE

startup repair - diagnosing your pc

There are situations where Windows doesn’t boot or the “Reset this PC” option in Update & Security (Settings) does not work. In such cases, you can reset Windows 10 or 11 via the Windows Recovery Environment (“Windows RE” or “WinRE”). This article tells you how to reset the PC via WinRE. Resetting through the Windows … Read more

Error “Access is Denied” when running “Bootrec /Fixboot”

bootrec /fixboot access denied

When you run the “bootrec /fixboot” command from Windows RE, the error “Access is denied” occurs: Bootrec /FixMbr — writes the master boot record of the system partition using the master boot record compatible with Windows. This operation does not overwrite the existing partition table. Bootrec /FixBoot — write a new boot sector onto the … Read more

KB5034441 Update error 0x80070643

KB5034441 error

On many Windows 10 systems, the update KB5034441 (Windows Recovery Environment update for Windows 10 21H2 and 22H2) failed with the error code 0x80070643. 0x80070643 (“ERROR_INSTALL_FAILURE”) is a generic error code which means “Fatal error during installation.” The DISM log may show the following entries: [16088] ImageUnmarshallHandle: Reconstituting wim at C:\$WinREAgent\Scratch\update.wim. [15624] Received unmount request … Read more

How to Rebuild the EFI Boot Partition, BCD and Boot Files

bcdedut find windows drive letter osdevice

The EFI boot partition is a FAT32 partition that stores the boot files and the boot configuration data (BCD) to load Windows. Sometimes, the boot partition or the BCD may get corrupted, and the boot files remain unserviceable by the Windows Setup process. In that case, rebuilding the EFI partition and recreating the BCD & boot files should resolve the issue.Read more

How to Reset Forgotten Windows 10/11 Account Password

Summary: This article tells you how to reset the password(s) for any local user account, including the built-in administrator in Windows 10 if you have forgotten the password.

Occasionally, we may forget the Windows user account password, especially if we have been using the auto-login using stored credentials or PIN sign-in method for a long time. Most users don’t have a second administrator account on their computer. And they would have never activated the built-in Administrator account (keeping it disabled is good for security, anyway).

The local user account password can be reset easily using different methods even if you haven’t created a password reset disk beforehand.

If you’re using a Microsoft Account (MSA), you can reset your forgotten MSA password online. However, this is not within the scope of this article. This post tells you how to reset the local user account password.

Similar problem: Lost administrator rights but not the password?

If the user account has suddenly lost its administrative privileges (but you remember the password) and turned into a guest or standard user account, it’s a different issue and the fix is very simple in that case. Check out the article Lost Administrator Rights? Recover the Account via Windows RE for an easy fix.

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