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

Fix OneDrive Token Expired Error (0x8004de40)

You open OneDrive and see an error like “Your token has expired” or code 0x8004de40. This usually...

Fix Task Scheduler Auto Start Not Working in Windows 11

You set up a task in Task Scheduler to start automatically at boot or on a schedule, but it never...

Fix Windows Terminal Error 0x80070002 at Startup

If Windows Terminal fails to start and shows error code 0x80070002, it usually means the system c...

Fix Windows Defender Threat Service Permission Denied Error

When you open Windows Security and see "Threat service has stopped. Restart it now." or a "Permis...

Fix VirtualBox Kernel Driver Permission Denied on Linux

Fix Windows Defender Real-Time Protection Turning Off

If you see a notification that Windows Defender real-time protection is off, or it keeps turning ...