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

Fix OneDrive High CPU Usage on Windows 11

If OneDrive is using 20% or more of your CPU on Windows 11, it's usually due to a stuck sync, cor...

OneDrive Sync Paused Due to Large Files: Workarounds

You're working with a large file in OneDrive—maybe a video, database, or archive—and suddenly syn...

Fix VirtualBox Kernel Driver Not Installed on Windows 10

Windows Store Error 0x80073cf9: How to Fix Installation Failures

You try to install or update an app from the Microsoft Store, but you get error 0x80073cf9. The a...

Fix DNS Server Not Responding Using Command Prompt

When you see a "DNS server not responding" error, your browser can't translate domain names into ...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED Caused by Antivirus

When Chrome shows ERR_TUNNEL_CONNECTION_FAILED, it usually means a secure tunnel...