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#1
Graphics card works on 32 bit but not 64 bit
I have a Acer Aspire M5100. I have upgraded a few of its parts over the years, a 650 watt power supply, a Geforce GTX 460 graphics card, a AMD Athlon 64 x2 3.2ghz CPU, and have 6gb of RAM. Only part that is the same is the motherboard. I have a windows 7 32bit os and a windows 7 64bit OS. The 64bit OS I installed earlier today. I installed the most recent graphics card drivers for both OS's. 32bit drivers for the 32bit OS and 64bit drivers for the 64bit OS. When I boot up in 32bit it works just fine, but when I boot up in 64 bit OS and go to device manager the GPU says "Windows has stopped this device because it has reported problems. (Code 43)". I have tried to reinstall the drivers but it did not help. Does anyone know what is causing this problem and how to fix it? Also on a side note the audio does not seem to work says "No audio devices are installed". Any help would be much appreciated.