Checklists for software errors, setup, and tool workflows.

Fix Windows 10 Update Not Downloading: Practical Steps

You click 'Check for updates' in Windows 10, but nothing downloads. The progress bar stays at 0% ...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix OneDrive Access Denied on New Files

When you create or save a new file in a OneDrive folder and get an 'Access Denied' error, it usua...

Fix Windows Defender Access Denied Error When Running Command Prompt as Admin

When you run a Windows Defender command (like MpCmdRun.exe -Scan -ScanType 2) in Com...

Ubuntu Command Prompt Not Working After Update: Fixes

After a system update, you might find that the Ubuntu command prompt (terminal) is not working—it...

OBS Virtual Camera Not Working on Windows 10 – Fixes

You set up OBS Studio, enabled the virtual camera, but Zoom or Discord shows nothing. The virtual...