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

Fix Task Scheduler Error 0x80070020: Port Already in Use

When you see error 0x80070020 in Task Scheduler with the message "port already in use," it usuall...

Fix 'Windows Defender Not Recognized' Error in Command Prompt

Fix kubectl Context Not Found and Permission Denied

You try to run a kubectl command and get an error like error: context not found or <...

Fix Chrome DNS_PROBE_FINISHED_NXDOMAIN After Network Change

If Chrome shows DNS_PROBE_FINISHED_NXDOMAIN right after you connected to a new W...

Fix Windows Security Token Expired Error 0x80070520

You see error 0x80070520 with the message 'The security token has expired.' This usually happens ...

Fix Microsoft Store Not Opening After Update

After a Windows update, you might click the Microsoft Store icon and see nothing happen—no window...