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High CPU Utilization in Explorer.exe

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by craig shaw

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Greetings.

I've been encountering a seemlingly random problem. The task explorer.exe starts consuming all CPU time, effectively locking up the Windows UI for the user. This is happening on Windows 2000 Professional and NT 4 machines in an NT4 domain.

The only thing that seems to be common is that the problems all started shortly after I rolled out SMS Server Service Pack 3. Other than that, the problem does not seem to be related to SMS in any way.

Has anyone seen this before? I've tried searching the MS knowledge base, but no luck.

Craig Shaw
Systems Administrator
CAA Manitoba
craigs@caamb.mb.ca

3 replies

by parbo

It seems like it some networking part causing this. at least all of them are on the network and different OS's. maybe it's trying to refresh something. Do you have mapped drives? does it happen at regular intervals? Try running it off the network and monitor it to make sure it doesnt happen when offline.

Hope this helps abit

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