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

How to Fix Cloudflare 521 Error (Port 443 Blocked)

When you see a Cloudflare 521 error, it means Cloudflare’s servers cannot connect to your origin ...

How to Stop Chrome from Crashing at Launch

If Chrome crashes immediately when you try to open it, you're not alone. This usually happens...

Fix Windows 11 Installation Assistant Stuck at 99%

You're running the Windows 11 Installation Assistant, it reaches 99%, and then nothing happen...

Fix DNS Probe Finished NXDOMAIN Caused by Antivirus Blocking

You try to load a website and see DNS_PROBE_FINISHED_NXDOMAIN in Chrome, or simi...

Fix VS Code Breakpoint Condition Not Working

You set a conditional breakpoint in VS Code, but execution either stops every time or never stops...

Node.js Heap Out of Memory vs Stack Overflow: Key Differences