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

Fix BitLocker Startup Key Prompt After Settings Reset

If you've recently reset your BIOS/UEFI settings, cleared the TPM, or updated firmware, you may s...

Windows Defender Not Working After Update: Checklist

After a Windows Update, Windows Defender (now called Microsoft Defender Antivirus) may stop worki...

Microsoft Teams Connection Refused: Troubleshooting Checklist

When Microsoft Teams shows a 'connection refused' error, the app cannot reach its servers. This u...

Fix Microsoft Teams Microphone Not Detected in Windows

Common Causes

Fix Chrome Update Error 0x80070002 on Windows 7

When updating Google Chrome on Windows 7, you might see error code 0x80070002. This usually means...

How to Fix BitLocker Dependency Conflict Error

If you see a 'dependency conflict' error when enabling BitLocker, it usually means the system's T...