Windows 7 slow down

A user complains that they have 2 computers that slow down around 1:15pm everyday for 5 minutes.  Slowing down to nearly being non functional.

Sure enough at 1:11PM everyday several things happen (according to the event log):

> Microsoft Antimalware has removed history of malware and other potentially unwanted software.
> The WinHTTP Web Proxy Auto-Discovery Service service entered the running state.
> The Windows Modules Installer service entered the running state.
> The start type of the Background Intelligent Transfer Service service was changed from demand start to auto start.
> The Application Experience service entered the running state.
> The Multimedia Class Scheduler service entered the running state.
> Microsoft Antimalware signature version has been updated.
> The Windows Error Reporting Service service entered the running state.

I have to assume that these things, or one of them, is causing the issue.

Anyone know off hand if this is normal?
Sheldon LivingstonConsultantAsked:
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Sheldon LivingstonConsultantAuthor Commented:
We have disable AV and updates... same issue.  Nothing is scheduled to run in that time frame.  We have to move on... we are going to reinstall Windows this weekend.
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KimputerCommented:
Seems like MS Security Essentials or Windows Defender updates itself, then runs a quick scan. Try to find the scan/history/activity log of one or both (either a text file, or also in the eventlog)
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Sheldon LivingstonConsultantAuthor Commented:
MSE is scheduled to scan Sunday's at 2am.  Defender is off.  No logs for MSE
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KimputerCommented:
Then I'm sorry to hear that MSE update and log file clean up is causing the slowdown already (without actually scanning, just normal maintenance).
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capnetCommented:
Windows Update checks can use alot of memory sometimes bloating svchost.exe process. Check if machine is running into virtual memory during these times.
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Kyle SantosCustomer RelationsCommented:
Do you have an antivirus scheduled to do a scan at that time?
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Sheldon LivingstonConsultantAuthor Commented:
No AV running at that time
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capnetCommented:
Try disabling windows updates for a couple of days on these computers.
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Sheldon LivingstonConsultantAuthor Commented:
We have to move on... going to reinstall
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