Windows cheat sheets
This pair of sheets covers the Windows work that never fits in one place. Command line puts every cmd.exe command and its PowerShell equivalent side by side — IP config, DNS flush, ARP, routes, processes, ports, time sync, system files — so you can translate on sight. Maintenance & cleanup lists what is safe to clean on Windows 11, where to find it, and the exact flags that do the cleaning.
Two runtime facts shape both sheets. First, Windows hosts three shells: cmd.exe (PowerShell's ancestor, still everywhere), Windows PowerShell 5.1 (the in-box default) and PowerShell 7 (pwsh). Every command on the maintenance sheet is elevated work; every read on the command-line sheet is safe from a normal prompt.
Cheat sheets
Free network tools
Subnet CalculatorIPv6 CalculatorWildcard MaskRange → CIDRSplitterAggregatorVLSM CalculatorPracticeCheat Sheet
FAQ
Should I use cmd.exe or PowerShell on Windows 11?
PowerShell for anything that becomes scripted: objects, filtering and formatting make it strictly more capable. cmd.exe remains fine for one-line utility work and is what most docs still publish, so keep both — the command-line sheet translates between them. The good news: all the System32 utilities run unchanged inside PowerShell.
Do the maintenance commands need administrator rights?
Reads never do. Storage Sense toggles and Disk Cleanup are user-level; sfc /scannow, DISM, chkdsk with /f, powercfg /hibernate off and cleaning C:\Windows\Temp need an elevated prompt — start the shell with Run as administrator before this work, and the table's DISM rows are the ones that change real files.
Is cleaning up Windows Update leftovers safe?
Yes, but with a time caveat: if a recent update is misbehaving, uninstall needs the superseded packages that cleanup removes. Run the component cleanup once you have confirmed the machine is healthy — that is the practical sequence, and the only truly irreversible button is DISM /StartComponentCleanup /ResetBase.
Where is the ITInsightHub Windows content that goes deeper?
The PowerShell hub covers the scripted side (language and one-liners), the guides get disk space and list installed software go into both, and find large files in Windows 11 works through every cleanup above as the step-by-step.