[Greg McKaskle]

Several people have provided log files. Thank you.

One log file showed spikes every 69 seconds that lasted 5 or 6 seconds.

The other showed spikes every 126 seconds that last for 2 seconds. One interval was 189 seconds instead. That implies a potential base period of 63 seconds.

Thus far, I haven't found any Windows service that people complain about with either of those periods, and I don't have a computer that shows the problem.

So, if you have one that is misbehaving, my suggestion is to go to the control panel and search for Schedule. Open the Task scheduler and look at the list of tasks that ran in the last 24 hours. Toggle them open to see how often, how long, and their completion status.

You may also want to click on the local item definitions in the leftmost tab. This shows how they are defined and allows you to change them. Any task that is set to run with elevated privileges may be capable of this interruption.

It may also be useful to look at the services. Search for Service in the Control Panel. There is less information about when the services actually do something, but you may find some things that raise a flag.

I'd then probably rank these and turn off those most likely to cause issues. Please, please, post the results.

If I can get this to happen on a computer, I'll poke around as well.

Greg McKaskle