No, there is no "default". You can change the local administrator's password
to a blank with third-party tools, but if this computer is going to go back
to work with you, then your IT Dept. will be cross with you.
Probably you should just wait until tomorrow and get it taken care of
properly, but it's your choice.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.