On the Windows 7 product key page, you can see the details of the product key. You'll be redirected to the Windows 7 website, from where you just have to insert the full product key into the registration box on the right, and download the system.
If you encountered any problems when you tried to activate Windows 7 using product key while registering a new installation, please enter your Windows 7 product key on the link I lost or damaged my product key .After you enter your Windows 7 product key, the system will provide you with a link that allows you to register your Windows 7 copy.
You will be prompted to input your full product key to activate the copy. In few cases the activation process will fail. The easiest way to resolve this problem, is to copy the entire clipboard content into the confirmation box. Then enter the 64-bit product key for the installation. If you still encounter problems while attempting to activate your copy with the 64-bit product key, you need to register this copy with the 32-bit version.
The process of registration of Windows 7 product key is straightforward and easy. You just have to enter the OEM product key into the box on the right, and wait for the system to complete the process of activation by downloading the software from the website. If you have verified the product key is original you will be redirected to the Microsoft website where you can download Windows 7.
MemTest86 run OK without any problem on my motherboard with a socket 775 AMD Athlon II X2 processor. After installation I have changed the default settings to load the first set of 6 test levels in the bios. It loads to level 6 with no slowdowns. The memory is also rated 4-4-4-4-4-16. Have you tried level 1-4? d2c66b5586