Knowledge base for software setup, errors, and daily tool work.

Fix Windows Update SSL Certificate Error 0x80072f0d

You see error 0x80072f0d when checking for Windows updates. The system cannot verify the update s...

BitLocker High Memory vs CPU Usage: Diagnosis and Fixes

If your system feels sluggish and you suspect BitLocker is the cause, it helps to know whether th...

Fix Remote Desktop Login Loop via Registry and Terminal Services

If you’re stuck in a remote desktop login loop—where you log in and are immediately logged out or...

Fix 'File Locked by System Process' in Windows 10 Search

When you search for a file in Windows 10 and get an error that the file is locked by a system pro...

Outlook Not Receiving Emails from Specific Sender: Fixes

If Outlook is not receiving emails from a specific sender while other emails come through fine, t...

Fix SSH Permission Denied (publickey) on Raspberry Pi