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

Fix Windows Activation Auto Start Not Working

You expect Windows Activation to pop up automatically after a hardware change or fresh install, b...

How to Fix DNS Probe Finished NXDOMAIN on Chrome (IPv4/IPv6)

You're browsing in Chrome and suddenly see "DNS probe finished NXDOMAIN" — meaning the domain nam...

Fix PowerShell Script Not Auto-Starting in Task Scheduler

You set up a PowerShell script to run automatically via Task Scheduler, but it doesn't start or f...

Fix Windows Activation Sync Issue Between Windows and Ubuntu

If you dual-boot Windows and Ubuntu and suddenly see a “Windows isn’t activated” message, the iss...

How to Fix Outlook Rate Limit Error in Office 365

Understanding the Error

You may see a message like "Too many requests" or "Server busy" ...

How to Add Missing GPG Key in Ubuntu

When running sudo apt update on Ubuntu, you may see an error like NO_PUBKEY 12...