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

Fix Windows Search Not Working After Update

After a Windows update, you might click the Start menu or press the Windows key and type, only to...

How to Fix a File Locked by Another User in an RDP Session

You try to edit a file over Remote Desktop and get an error like "The file is locked by another u...

Fix OneDrive Sync Failed: Permission Denied for Folder

You try to sync a folder with OneDrive, but it fails with a 'permission denied' error. This typic...

Fix PowerShell 502 Bad Gateway in IIS: Step-by-Step

A 502 Bad Gateway error in IIS typically means a downstream server or application pool failed. Wh...

Fix KMS Activation Error: Port 1688 Already in Use

How to Fix Windows Security Error 0x80073b01

You may see error 0x80073b01 when opening Windows Security or trying to use its features. It usua...