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

Fix Windows Activation Stuck on 'Activating'

You see 'Activating' in Settings > System > Activation, but it never finishes. This is a common g...

Fix Remote Desktop 504 Timeout with Network Load Balancer

When you use Remote Desktop Gateway (RD Gateway) behind a network load balancer, a 504 Gateway Ti...

Fix Windows Security Failed to Start Due to Corrupted System Files

You open Windows Security and see the message: "Windows Security failed to start. Corrupted syste...

BitLocker Recovery Key Not Accepted: 504 Error Fix

You enter your BitLocker recovery key, but get a 504 error. The key is not accepted. This usually...

Fix Microsoft Teams Module Not Found After Update

After a Microsoft Teams update, you might see an error like "Module not found" when trying to sta...

Fix GitHub Actions Cache Action Permission Denied Error