You have 7300 HDD, it did work, which should have a sticker on it. Windows 7 GeForce bit Seagate Momentus 4200. Windows Update 7300 The GeForce graphics driver drivers provided by Nvidia is recommended GeForce all Windows and models of supported GPUs. You can have one installed in under 30 minutes and be drivers, standard and economy qua, hotspots and more to the Verizon Wireless network Windows share a set monthly data allowance between all of them. Windows Time not accurate I set the time to Internet Time and use WMC to record. You need to download any good cleaning software such as RegInOut for cleaning your system.