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

Windows Security App Not Working After Update: Fixes

After a Windows update, the Windows Security app may fail to open, show a blank screen, or displa...

Fix Remote Desktop Error 0x8007042c: Service Unavailable

When you try to connect to a remote computer and see error 0x8007042c, the remote desktop service...

How to Unlock APT in Ubuntu: Fix Locked Package Manager

If you see an error like 'Could not get lock /var/lib/dpkg/lock' or 'Unable to acquire the dpkg f...

Fix NVM Not Found in Git Bash on Windows

Fix Windows Activation Update Error 0x80070643

If you see error 0x80070643 during a Windows activation update, the update process has been inter...

How to Fix Telnet Connection Timeout Errors in Command Prompt

You run telnet in Command Prompt and get a connection timeout error. T...