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

How to Fix Task Scheduler Not Running on Ubuntu

If you rely on scheduled tasks on Ubuntu—whether via cron, systemd timers, or anacron—and they su...

Fix Windows Update 502 Bad Gateway Due to DNS Configuration

If you see a '502 Bad Gateway' error when running Windows Update, the problem is often on the net...

Fix Version Mismatch and Permission Denied in Windows Update

When running Windows Update, you might encounter a "version mismatch" error followed by "permissi...

Fix Windows Search SSL Certificate Error

When Windows Search throws an SSL certificate error, it usually means the search service can't va...

Fix 'Windows Defender Not Recognized' Error in Command Prompt

Fix WinSCP Permission Denied When Downloading Files

You're connected to a remote server via WinSCP, browsing files fine, but when you try to download...