Windows 11 24H2 users are finding there is undeletable data that remains on their devices after installing the recently released feature update.
The known issues list has not grown in the days since the rollout on October 15, however, for many users – this writer included – attempts to clean up the detritus after the update has left 8.63 GB of disk space occupied by "Windows Update Cleanup."
Having file remnants after a Windows update is not unusual, and, according to Microsoft, "Windows keeps copies of all installed updates from Windows Update, even after installing newer versions of updates." Space taken up by the old versions can be reclaimed – at least that's the idea.
The Windows Settings application or the delightfully retro Disk Cleanup tool can be used to clear the temporary files from storage.
However, that 8.63 GB of data appears to persist regardless of how often a user attempts to delete it or restarts Windows 11. A scan of Microsoft's Feedback Hub confirms numerous users are affected.