Python Was Not Found on Windows? Check the App Aliases
Python was not found on Windows, run without arguments to install from the Microsoft Store? Run where.exe python, then fix PATH and the app execution aliases.
Screen Won’t Turn Off on Windows? Check Controllers First
Screen won’t turn off on Windows? Unplug game controllers and close GPU overlays first, then read the DISPLAY section of powercfg /requests and close Steam.
Could Not Prepare the Computer to Boot? Remake the USB Stick
Windows could not prepare the computer to boot into the next phase of installation? Setup chose the wrong boot partition. Remake the stick, hide other drives.
Defender Won’t Restore a Quarantined File? Use MpCmdRun
Restore does nothing in Protection history? List the quarantine with MpCmdRun, restore by threat name rather than file name, and use Path for a new folder.
WSL Not Freeing Disk Space? Compact the ext4.vhdx
WSL not giving disk space back after you delete files? The ext4.vhdx only grows. WSL 3.0.1 can compact it with one command, and older versions use diskpart.
PuTTY Couldn’t Agree on Host Key Algorithm? Update It
PuTTY couldn’t agree on host key algorithm? The server offers rsa-sha2 or ecdsa methods an old PuTTY lacks. Update PuTTY or FileZilla, or fix the server.
Zone.Identifier Files in WSL? Fix Copies and Downloads
Zone.Identifier files appearing in WSL? Add wsl.localhost to Local intranet for Explorer copies, stop zone data for downloads, and clear the old ones.
Lots of Console Window Host in Task Manager? Find the App
Many Console Window Host entries in Task Manager? Each conhost.exe belongs to one console program. List the parents in PowerShell and close what starts them.
PuTTY Key Format Too New? Save the Key as PPK Version 2
PuTTY key format too new? PuTTYgen 0.75 and later save PPK3, which older PuTTY cannot read. Update the old tool, or save the key again as PPK version 2.
Unable to Locate a Java Runtime on Mac? Install a JDK
Unable to locate a Java Runtime on your Mac? The java command only finds a JDK in one folder. Install a JDK, not the java.com runtime, and match the version.