If your company went round and manually installed Windoze on every machine the IT staff should immediately be fired.
There's this wonderful technology known as 'imaging'. Install 1 PC, get it setup how you like it, strip it of its personality using sysprep then deploy to all machines in a matter of minutes. Type in computer name, done.
I can wipe and re-image hundreds of machines without even leaving my desk. The last time any of my lot went round manually installing machines was in 1998, and they were behind the times even then!