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

Fix PowerShell Not Launching from Start Menu

When you click PowerShell in the Start Menu and nothing happens, or it flashes and closes, it's u...

Fix Windows 10 Activation Access Denied Permission Issue

You try to activate Windows 10 but see 'Access Denied' or 'Permission Denied.' This usually means...

How to Fix Windows Defender Not Turning On

Windows Defender (now called Microsoft Defender Antivirus) sometimes refuses to turn on or stay o...

How to Fix Remote Desktop Connection Not Working

You try to connect to a remote PC but get an error, a black screen, or nothing happens. This is c...

Fix Command Prompt DNS Lookup Failed Error 0x80072ee7

Fix Windows Update Error 0x800f0905 on Mac

When running Windows on a Mac—either through Boot Camp or a virtual machine—you might encounter u...