How do I log onto a networked computer no longer linked to a network?

I have just inherited an old network computer from an office. When I log into, the computer asks me to log into the network of that company.





I tried to log in using the original username and passwords but obviously that doesn't work because I'm no longer connected to that network.





Does anyone know if there's any other way I can log onto the computer?How do I log onto a networked computer no longer linked to a network?
Talk to the tech person at your company and tell them you need the local username and password for the computer (try to figure out what model it is and find the serial number or asset tag if you can, this will possibly help them determine what you need).





You have to logon locally to the machine. Where it lists the domain when you log, under your username and password, you can do a drop down box and choose to log into the local computer but you need that username and password from the tech guy or whoever set it up originally or you can't get in. (Chances are slim that the company left it on the default username, like ';Admin'; and default password which varies)





If its Windows XP then use tools like those found here to reset the password, (for more advanced users): http://www.petri.co.il/forgot_administrator_password.htmHow do I log onto a networked computer no longer linked to a network?
You could just do a system restore or install a new hard drive. If the other hardware in the computer is even worth anything.
Format it? I find that is generally the best way to fix my problems with computers I am given second hand and almost instantly do it upon receiving it. I have had a few bad picture/video experiences before... best to just format it lol