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

How to Restore Chrome Profile After a Crash

Symptoms of a Corrupted Chrome Profile

After a browser crash, you might see errors like '...

How to Fix WinRAR Checksum Error and Configuration Settings

If you see a 'Checksum error' or 'CRC failed' message in WinRAR, the archive is likely damaged or...

Fix Task Scheduler Authentication Failed: Scheduled Task Not Running

You set up a scheduled task in Windows Task Scheduler, but it never runs. You check the history a...

Fix Windows Security DNS Error Using Command Prompt

If you see a DNS error in Windows Security (like "DNS server not responding" or "DNS resolution f...

Windows 10 Activation Stuck at 0% Setup: How to Fix

When you try to activate Windows 10, the progress bar may hang at 0% and never move. This usually...

Fix Chrome Crashes When Opening PDF Files

You click a PDF link in Chrome and the browser freezes or closes entirely. This is a known issue ...