Sets PersistBrowsers = 0 under Explorer\Advanced. Stops Windows from re-launching all the File Explorer windows you had open before a restart/sign-out. You get a clean desktop on login instead of a flurry of folders reopening (each of which costs disk/CPU at the worst possible time — startup). Reversible.
MaxTweaks applies this tweak with one click and snapshots your original setting first, so you can revert it cleanly at any time. A System Restore point is offered before batch changes, and every tweak links to its official source.
Get MaxTweaksOfficial documentation: https://learn.microsoft.com/en-us/windows/win32/shell/