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

Fix Task Scheduler 502 Bad Gateway After Windows Update

After a Windows update, you might see a 502 Bad Gateway error when using Task Scheduler. This usu...

Fix Task Scheduler Error 101: Failed to Start

You see Event ID 101 in the Windows Event Viewer under TaskScheduler, and the task didn't run. Th...

Fix Windows Security Virus Scan Stuck at 99%

You run a full virus scan in Windows Security, and it gets stuck at 99% for minutes or hours. Thi...

Windows Security Not Scanning for Viruses: How to Fix

If Windows Security (formerly Windows Defender) is not scanning for viruses, you may see an error...

Fix CMD Service Unavailable Due to Group Policy

Situation

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

How to Fix Remote Desktop Black Screen After Login

You log into a remote machine via RDP, authentication succeeds, but instead of the desktop you se...