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

Fix Windows Security App Blocked by Antivirus

You open Windows Security (formerly Windows Defender) only to see an error or blank screen becaus...

Fix 'Python Command Not Found' in Anaconda on Windows

Fix Nginx Configuration Test Failure After Adding Proxy Pass

You add a proxy_pass directive to an Nginx server block, run nginx -t, ...

How to Fix Nginx Permission Denied Error

When Nginx returns a 403 Forbidden or logs a "permission denied" error, it usually means ...

Git Push Large File Timeout Error: Fixes and Workarounds

You're trying to push a commit that includes a large file—maybe a dataset, a binary, or a gen...

DNS Probe Finished NXDOMAIN: Meaning and Fixes

You're trying to visit a website but Chrome shows "DNS_PROBE_FINISHED_NXDOMAIN". This...