Two weeks ago I made a clean install from Windows XP 32-bit to Windows 7 32-bit. Was worried that new OS won't work properly because my PC is 7 years old and may not have the best specs, has survived a virus and hard drive crash twice. So far it works flawlessly. Now I'm been bugged with "Get Windows 10" window almost every day. I know people say positive things about Windows 10 and it's still free and now think I should update too. It states that my PC is compatible. But I'm worried about my CPU. Ever since I installed 7, CPU fan is now louder then it was before. I have cleaned it but still loud. I hope it's not something bad.