This post explains how to fix error 0xc00000bb during boot or when accessing Windows RE on a Windows 10 or 11 PC. 0xC00000BB (“STATUS_NOT_SUPPORTED”) means “The request is not supported”.Read more
windows recovery environment
How to Resize the Recovery Partition in Windows
The Recovery partition stores Winre.wim, an image needed to boot into the Windows Recovery Environment (WinRE). If the recovery partition is small, the system might fail when servicing the Winre.wim image. For instance, you may encounter error 0x80070643 when installing WinRE security updates if the recovery partition is not big enough. The official documentation mentions … Read more
Fix: Cannot Delete the Cygwin64 folder
If you installed “cygwin64” earlier and want to delete the folder after uninstalling the tool, you may be unable to do so.
It may say, “Folder Access Denied.” This can happen if the NTFS permissions for the folder are tight or the profile that owned the folder no longer exists on the computer.Read more
REAGENTC.EXE: Operation failed: 3
When you attempt to enable Windows RE by running the reagentc /enable command, the following error may be shown: REAGENTC.EXE: Operation failed: 3 REAGENTC.EXE: An error has occurred. When you attempt to create a USB recovery drive, the following error occurs: We can’t create a recovery drive on this PC Some required files are missing. … Read more
DISM Error 3017 “System reboot is required”
When you run DISM ScanHealth or RestoreHealth to repair the component store, error 3017 may occur. The entire error message verbatim is given below:Read more
How to Extend the Windows RE Partition Using PowerShell
KB5034441 is a WinRE security update that patches the Winre.wim image. The Recovery partition needs 250 MB of free space for the KB5034441 update to install correctly.
Almost every Windows 10 user has been affected by the KB5034441 error 0x80070643. You can extend the Recovery partition using the diskpart command-line. However, end-users might find that command-line procedure complicated.
So, here’s a PowerShell script from Microsoft that automatically extends the Recovery partition by 250 MB.Read more
How to Backup your WinRE Image (Winre.wim)
The Windows Recovery Environment is powered by the Winre.wim image, usually located in the Recovery partition or, in some cases, in the OS partition itself.
You may have to back up your Winre.wim image in some situations, e.g., before or after servicing Winre.wim, or when you want to resize the Recovery partition.Read more
How to Reset Windows 10 or 11 via Windows RE
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
REAGENTC.EXE: Operation failed: Error 2 or Error 3bc3
When you attempt to enable Windows RE by running the reagentc /enable command, the following error may be shown:
REAGENTC.EXE: Operation failed: 2 REAGENTC.EXE: An error has occurred.
(or)
REAGENTC.EXE: Operation failed: 3bc3
Error “Access is Denied” when running “Bootrec /Fixboot”
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