There are some excellent removal guides available at BleepingComputer Forums.
Here are just 2 of them for 2 variations of the FBI Ransomware:
I have moved this topic to the Corporate User Assistance sub-forum for better support. Hopefully someone with Endpoint experience will come along soon.
Standard removal advice may not work in this case.
mcafee endpoint encryption ... On my company laptop(i dont have adminstrator rights)
company it guy wants the laptop back to kill all.
It's a company laptop so of course the IT people want it back. It's a company asset, it probably connects to the company network. They may want to do some forensic analysis, and may not be pleased if forensic evidence is removed or tampered with. Or else they will simply re-image it.