my computer freezes when i play video or java video

first timer here so i hope i can get some help

when i fist got my asus it work fine but lately while running video it stalls playing sound and every thing seem to be running the sound slowly cant move mouse or click numlock while its frozen for 1 to 5 mins and then start running fine again the crashes dont happen often i can play star caft 2 and it happen but not often it more annoying then any thing else but most of the time if i play a video or java video it crashes

at lease 2 to 3 times a day

reinstalled the drivers for my intel r(4)series express chipset because windows error says i have a driver problem after each crash when i check the event log
it says The driver \Driver\libusb0 failed to load for the device USB\ROOT_HUB\4&23fe285a&0. ever time it happens or i get this one
\SystemRoot\SysWow64\drivers\libusb0.sys has been blocked from loading due to incompatibility with this system. Please contact your software vendor for a compatible version of the driver. as a critical system error in the event viewer ps some one need to update that interface event viewer sucks since none of the get help links really work but any who . so i said ok uninstall reinstall driver but it dont help,also try in safe mode no help

please help

lol i dont know when it really started but i know when it got annoying thanks thou
maybe if event viewer where made more like other windows program search it would be easier i still dont understand no right click option on event viewer but hot keys suck for a reason there to many of them to remember but i will do some research and try to figure out the date thanks man

had 2 more crash same thing and now this
The Desktop Window Manager is experiencing heavy resource contention.
Reason : Graphics subsystem resources are over-utilized.
Diagnosis : A consistent degradation in frame rate for the Desktop Window Manager was observed over a period of time.


was watching you tube vid and nothin running in the back ground but windows programs and noth much else so i guess that was a bust look like i need to yet again reinstall windows see if that works but before i do can you guys give me any ideas