Are you overclocking your processor or memory speed?

Can't install OFP or one of the upgrades? OFP freezes? Is OFP crashing to desktop? Or, maybe, other oddball things are happening to you with OFP that aren't occurring with other games and apps on your PC?

Are you overclocking anything? If you are, try resetting your overclocked system components to the manufacturer's specifications, reboot and see if your problems with OFP disappear.