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

Fix High CPU Usage by Antivirus Scanning PowerShell

If you notice that PowerShell (powershell.exe or pwsh.exe) is using high CPU, and you have an ant...

Microsoft Teams Audio Not Working: Step-by-Step Fixes

When Microsoft Teams audio stops working, you might hear nothing from a call, your microphone fai...

How to Revert BitLocker Settings to Default

If you've changed BitLocker settings and need to go back to the original configuration, this guid...

Jupyter Kernel Dead: Common Causes and Fixes

You're working in a Jupyter notebook, and suddenly the kernel dies. The notebook becomes unrespon...

Fix BitLocker 'Cannot Access Drive Permission Denied' Error

Understanding the Error

You see 'Cannot access drive. Permission denied' when trying to o...

Fixing Windows Search 'Permission Denied' Due to Dependency Conflicts

You open Windows Search and type a query, but instead of results you get a vague 'permission deni...