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

How to Fix Windows Security Service Unavailable

When Windows Security shows "Service unavailable" or a red banner, your antivirus and firewall pr...

Fix 'Service Not Found' Error for Task Scheduler on Ubuntu

Fix OneDrive Sync Pending for Large Files

If you see "Sync pending" on large files in OneDrive, it usually means the file is too big or the...

Fix Windows Search Indexing Stuck or Not Working

Windows Search stops indexing files, says "Indexing not running," or shows a status that never ch...

Unlock a File Locked by System Command Prompt

You try to delete or move a file, but Windows says it's open in 'System' or 'Command Prompt'. Thi...

Windows Security 404 Not Found: Setup and Fix Guide

When you open Windows Security (formerly Windows Defender) and see a blank page or a '404 Not Fou...