So Recently, I've brought a new graphic card to upgrade my new CPU, new hard drive and window 7 64 bit SP1 to upgrade my computer. I've installed everything..and when i started to browse youtube or watch any other video it starts to freeze (screen, mouse, audio, keyboard) and i waited it out for a few minutes and it goes back to normal. It didn't freeze when i try to play games. Also i've tried uninstalling adobe flash player but it didn't seem to work.. looked up on the forum for more info and tried most of the stuff but it didn't work.. like cleaning disk and disk defragment.. my ram seems to be fine, everything is up to date, so I have no idea what is going on.. could anyone give me advice and help me please Edit: System - Operating System: Windows 7 Home Premium 64-Bit System Manufacturer: Gigabyte Technology Co., Ltd. System Model: EP43-DS3L BIOS: Award Modular BIOS v6.00PG Processor: Intel(R) Core(TM)2 Duo CPU E8400E@3.00GHz (2 CPUs), ~3.0GHz Memory: 8192MB RAM Page File: 1507MB used, 6680 MB available DirectX Version: DirectX 11 Device - Name: NVIDIA GeForce GTX 550 Ti Chip Type: GeForce GTX 550 Ti DAC Type: Integrated RAMDAC Approx. Total Memory: 4064 MB Current Display Mode: 1280 x 1024 (32 Bit) (60Hz) Monitor: Generic PnP Monitor Driver Version: 295.73 CUDA Cores: 192 Graphics clock: 900 MHz Processor clock: 1800MHz Memory clock: 2052 MHz (4104 MHz Data rate) Memory Interface: 192-bit Dedicated video memory: 1024 MB GDDR5 PS: I think It only freezes whenever I am downloading something like streaming youtube, or any other online video streaming I freeze using QVOD and PPTV. while watching those videos, whenever they're finished downloading It seems to be fine.