Quick answer
After a major Windows update, use conservative cleanup settings until the system is stable and rollback or recovery needs are understood.
By BleachBit.app Editorial Team · Published October 6, 2026 · Updated October 6, 2026
Confirm stability
Restart and test drivers, networking, printing, and important applications before aggressive cleanup.
Preview new categories
A feature update can create unfamiliar temporary storage; preview large or new categories before deletion.
Respect rollback needs
Use Windows-supported cleanup paths for operating-system rollback data rather than deleting system folders manually.
Frequently asked questions
Should I use Preview first?
Yes. Preview helps review the scope before data is removed.
Should every cleaner be enabled?
No. Select cleaners for a specific goal and only when you understand the data involved.
What after changing settings?
Run a small cleanup and verify normal Windows and application behavior before expanding the scope.