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

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

Microsoft Teams Not Connecting to Server: Practical Fixes

When Microsoft Teams won't connect to the server, you typically see a persistent "Reconnecting" m...

Fix Windows Terminal Crashes When Opening Multiple Tabs

If Windows Terminal closes unexpectedly or freezes when you try to open a second or third tab, yo...

Chrome DNS Error Troubleshooting Guide

When Chrome shows 'DNS_PROBE_FINISHED_NXDOMAIN' or 'ERR_NAME_NOT_RESOLVED', your browser can't tr...

Fixing Nginx Permission Denied for Upstream Unix Socket

If you see connect() to unix:/var/run/php-fpm.sock failed (13: Permission denied) in...

Windows Activation Troubleshooting Checklist

Windows activation can fail for many reasons—product key typos, hardware changes, or server hiccu...