irnchriz
macrumors 65816
So, erm, what did your comparison of snapshots created over time reveal? I'm assuming, since you're testing fitness for some purpose and you've identified a repeatable issue, that you're actually trying to find out what the problem is. As most parts in your computer are volatile, we can assume that some files on your hard drive, or the organisation of files on the drive, have changed in some way. What did you check?
I'm not asking to be facetious - I really am interested in informed diagnoses of problems which develop over time. There are so many reports of various systems over the decades "just getting slower until I give up and reinstall" but few attempts to identify exactly what's happening.
We have 6 test systems all running windows 7 ultimate, these have had various applications installed on them to test viability on the new OS. I kept one of the test systems, flattened it and reinstalled 7 on it. I use this system daily purely for Outlook 2007 (connected to out exchange server) and run Office 2007 word and excel for creating and editing documents.
This system is also used for general browsing and has the Adobe flash plugin installed for both firefox and IE8.
And thats about exciting as it gets.
After 3 months of daily use it was becoming slow to load even the 'explorer'. We set about updating the drivers, as during this time many hardware drivers have become available, but this made no difference.
After reinstalling everything ran as expected. Our systems guys have been looking for a cause to the slowdowns but as of yet have no definite fix. They have disabled auto defrag and a couple of other services as they think this may be part of the issue.