Top Definition
The arbitrary amount of time it takes to install Windows XP on your computer. Usually somewhere between 40 and 120 earth minutes
I need to reinstall windows. I'll be back online in exactly one microsoft hour.

Your computer will be ready in one microsoft hour and 30 microsoft minutes
by d4m4s74 August 22, 2012

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×