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

BitLocker Not Starting After BIOS Update: Fixes

You update the BIOS, reboot, and instead of the usual Windows login, you see a BitLocker recovery...

Windows Security DNS Error Troubleshooting Checklist

If you see a DNS error in Windows Security—like 'DNS resolution failed' or 'We can't connect to t...

OBS Virtual Camera Black Screen: How to Fix

If you see a black screen when using OBS Studio’s virtual camera in Zoom, Teams, or other apps, t...

Fix Windows Security 'Failed to Start' Group Policy Error

You click the Windows Security icon in the taskbar or try to open it from Settings, but nothing h...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

Windows Update Cleanup Tool Not Removing Files: Fixes

You run Disk Cleanup, check "Windows Update Cleanup", and it seems to work—but the disk space doe...