I installed VMware Workstation version 7.2 under Windows 7 and installed XP and Vista on it. Until then, I haven’t use VM’s. I updated my Windows 7 through windows update and then when I tried launching VMware Workstation and power on one of my VMs I got an error message.

“Insufficient permission to access file” I did so many changes on my computer so I cannot use the system restore. I am still seeking for the solution that will aid me to solve this problem. If anyone can help me with this would gladly be appreciated. Thanks.
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You don’t have to perform a system restore on your computer you’ll just have to disable “User Account Control” settings of your Windows 7. Your new update might be affecting other programs on your computer.
To disable User Account Control do one of the following methods:
Method 1:
Method 2: