sysop@hub:~/tools/windows-pc-slow$
windows-pc-slow
"My computer is slow" in eight steps. Each one gives you the commands, tells you what to look at, and asks what you see. Start at the top: the first two steps sort most cases. PowerShell commands, some of them need an elevated window.
what you found
For Windows 10 and 11. On a company machine, security software and settings may be managed centrally: do not switch off protection or remove agents on your own. Related: stop code lookup, Windows troubleshooting cheat sheet, Windows Update cheat sheet, the Linux server is slow, the 20 helpdesk tickets.