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

Fix Windows Defender High Memory Usage

If you notice Windows Defender (Microsoft Defender Antivirus) consuming a lot of memory—sometimes...

Fix Microsoft Store Authentication Token Expired Error

When you open Microsoft Store and see an error like 'Authentication token expired' or 'Your authe...

Fix Windows Activation DNS Error After Network Change

If you recently changed networks (e.g., moved from home to office, switched ISPs, or changed rout...

Fix Windows Update Stuck at 0% – Practical Steps

You click "Check for updates" and the progress bar sits at 0% for minutes or hours. This is a com...

Set Up BitLocker to Avoid Token Expiration Issues

If you use BitLocker with a TPM and PIN or startup key, you may encounter a situation where the t...

Fix Windows Defender Proxy Error: Permission Denied