Pointsec Question

After logging on with user id and password, my laptop will not load Windows (in any mode) and, after unsuccessfully attempting to load Windows, it jumps back to the blank Pointsec log in screen. It was working perfectly until my husband updated the McAfee antivirus software and now I cannot get into my computer at all – everything goes back and stops at the Pointsec log in screen. Please help! This is an older laptop given to me with the Pointsec in place. I have no “IT Dept” to contact. Thank you very much!