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

Fixing Cloudflare 521 Error: Origin Unreachable

When you see Cloudflare error 521, it means your origin server is refusing the connection from Cl...

Cloudflare DNS Not Propagating to All Nameservers: Common Fixes

You changed a DNS record in Cloudflare, but some resolvers still show the old value while others ...

Fix Windows 11 Update Stuck at 0% with Low Disk Space

You're trying to install a Windows 11 update, but it's stuck at 0% for a long time. One f...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

Restore Windows Defender Real-Time Protection After Malware Disables It

If your Windows Defender real-time protection has been turned off and you suspect malware is the ...

Fix 'node sass build failed permission denied' Error