You will have to do one of two things.
You will either have to contact the administrator where you work and have them remove that password or, you will have to completely wipe the operating system and reinstall.
Unfortunately, we are not permitted to help you bypass any security measures as stated in the rules of the board:
No subject matter will be allowed whose purpose is to defeat existing copyright or security measures
If you would like help reinstalling your operating system, we will be more than happy to help you with that.
Hope this helps,