Windows 7 - Cpu 100% Hard drive still run

Hello.Sorry for my english.
I have notebook Acer Aspire 5315.2 GHz and 1 GB ram.
I installed Windows 7 one week ago.Until today I haven't any problems but it was started before I installed Nokia Pc suite.This program isn't compatible with Windows 7 so I removed it.After restart my widget show that: cpu 100 % and lamp from my hard disk still light.

I think that it's problem with acces with the internet bacause when i don't plug cable into usb[i have modem for usb] cpu show 100% and drop into 20-30 % and lamp from hard drive light only something around 3-5 minuts.

I won't install system again because if i will have this problem again i don't know what I should do.

Again sorry for my speech

Use system restore to go back before you installed the Nokia software.

I try restore system from restore point but when I checked i was really suprised.I didn't find on my hard drive restore point.

I see that happend when I plug Internet cable to my usb port.Probally I don't have choice and I must install system again or install XP.