Microsoft releasedKB5034441:Windows Recovery Environment update for Windows 10, version 21H2 and 22H2.

Microsoft acknowledged this Windows 10 Update error in asupport articleand suggested resizing the recovery partition as a workaround.

As per Microsofts support article, Windows 10KB5034441 bringsa security vulnerability fix related to Bitlocker encryption.

The fault signal may also include Windows Recovery Environment servicing failed (CBS_E_INSUFFICIENT_DISK_SPACE).

To resolveWindows Update error 0x80070643 Microsoft suggests manually resizing the recovery partitionto plant the WinRE update.

Remember to create a system backup before making any changes.

This workaround involves resizing partitions, so caution is advised.

Shrink the OS partition and prepare the disk for a new recovery partition.

To do that, runlist disk.

find out if there is an asterisk character (*) in the Gpt column.

If there is an asterisk character (*), then the drive is GPT.

Otherwise, the drive is MBR.

To format the partition, runformat quick fs=ntfs label=Windows RE tools

To Verify the Recovery Partition run commandlist vol.

Use Windows Update Troubleshooter

Your PC has a built-in troubleshooter to solve common problems.

Restart Windows Update Service

The Windows Update Service may encounter glitches that hinder its normal operation.

Restarting the service refreshes its functionality, potentially resolving any issues causing the update to fail.

These are command-line tools that can scan and repair your system files.

Press the Windows key, throw in cmd and bring up the command prompt as administrator.

Now initiate the following commands.

Updates often require significant disk space.

you could use a speed test tool or visit a website like fast.com to measure your bandwidth.

Incorrect date and time controls can create discrepancies in the update process.

Some updates rely on accurate timestamps, and ensuring the correct date and time helps avoid conflicts during installation.

Verify that your systems date and time controls are accurate.

Adjust them if necessary.