Taskmgr 20% and slow Explorer

I have 3 servers (2003 physical, 2003 virtual and 2008 physical) with the same problem, all have started this last 3 week after Microsoft updates (I guess).
Taskmgr is using 10-20% cpu every time and when you click any drive/directory in Explorer is very, very, very slow. None was instaled/changed (drivers, software or hardware) in this period only Microsoft updates.
TI_CompsisAsked:
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Justin DurrantSr. Engineer - Windows Server/VirtualizationCommented:
Install process monitor to get a better view of that is going on:

http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx
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TI_CompsisAuthor Commented:
I do it. Nothing appears to be strange.
Only Taskmgr process is using 20%.
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Justin DurrantSr. Engineer - Windows Server/VirtualizationCommented:
You should be able to see what is pegging the taskmgr process... once you do that kill it and see if CPU returns to normal.
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TI_CompsisAuthor Commented:
I found the problem: Kaspersky File Server 6.0.4.1212 has a bug.
After an upgrade to 6.0.4.1424 solved the problem.
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
This question has been classified as abandoned and is being closed as part of the Cleanup Program.  See my comment at the end of the question for more details.
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Windows Server 2003

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