RedBear1961

Distinguished
Oct 1, 2010
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18,510
Hello,
My Vista-run computer has suddenly started running dog slow. We're talking Commodore-64 slow here. I managed to buy and install McAfee and run it, and it said my system is clean. Being doubtful, I un-installed and ran the free version of AVG, and it said the system was clean too, so I re-installed the purchased version of McAfee & uninstalled AVG. System still dog-slow. Today, a window popped-up and said "NVIDIA RAID service English Language has stopped working" I selected "close program"
What the heck is going on with my computer, and how do I fix it? I want to get it smoothed out so that I can do a full-up install of Windows 7 and get rid of Vista.
 
I want to get it smoothed out so that I can do a full-up install of Windows 7
and get rid of Vista.

You won't need the Vista installation to be 'smoothed out' before installing Windows 7. The Vista installation will be wiped having no bering on Windows 7
when that OS is installed after the hard drive format.

As far as the Vista OS you are using currently, try running Ccleaner.

http://www.piriform.com/