Registry tweaks, Group Policy settings, hidden commands and the tools power users rely on — plus how to undo them.
Open the tweak catalogueOfficial docs for PowerToys, Microsoft's free, open-source utilities: Text Extractor, File Locksmith, PowerRename, FancyZones, Peek, Registry Preview, Hosts File Editor, Command Palette and more.
The safe ways to shrink the component store: the StartComponentCleanup task, DISM /StartComponentCleanup (with an optional /ResetBase) and Disk Cleanup. It also warns why you must never delete WinSxS files by hand.
Microsoft's list of Windows features that are no longer being developed and may be removed, such as Steps Recorder. Check it before relying on an older tool or tweak.
The companion list of features Microsoft has actually removed, with dates, for example WMIC and PowerShell 2.0. If a guide's command no longer works, look here first.
The full table of ms-settings: addresses that open individual Settings pages directly, with notes on which ones are deprecated in Windows 11.
A far more detailed Task Manager. It shows the process tree, which DLLs and handles each process has open, and lets you find which program has a file locked.