Some Windows users are in a quandary. Since Windows 10 ceased to receive support from Oct. 14, the only way to avoid moving to Windows 11 (if the hardware allowed), was to sign up to Extended Security ...
Your PC has been logging why it's slow the whole time and one command gives you the report. Why aren't you running it?
HP has confirmed a faulty BIOS update causing BitLocker recovery loops and boot failures on some Windows 11 commercial PCs ...