I currently changed my OS to Windows 7 Ultimate x32 from Vista Home Premium x32. My laptop is Acer Aspire 5920G with NVIDIA GEFORCE 8600M GT 512MB graphic card.
I installed Microsoft Office 2010 but when i tried to open the program, it crashes and my laptop restarts. Also, when I tried playing any video, it does the same. Other than that, my Windows works fine.
I'm not so good in computers and am trying to figure out the problem. Please help.