Flamingo Blog.

Windows.old is the previous installation Windows keeps after an upgrade so you can go back. What it holds, the 10-day clock, what to check first, the supported ways to delete it, the takeown fallback, and a script for the whole fleet.

A mouse that double clicks on a single press is either a worn microswitch or a setting. This guide explains switch bounce, gives a five-minute triage that tells the two apart, lists the Windows and vendor settings that mimic a worn switch, and shows when replacing the mouse is the cheapest fix.

A technician reference to cmd.exe: the networking, process, system info, disk repair, shutdown and account commands with their switches, a cheat sheet table and what changed now that WMIC is removed from Windows 11.

How to map a network drive on Windows 11 from File Explorer, net use, New-SmbMapping and a Group Policy Preferences Drive Map, why the letter is missing when the mapping worked, and the four SMB settings in 24H2 that refuse a connection.