1

We have a lot of Win 7 SP1, both 32 and 64 bit machines serviced by a Server 2008 R2 WSUS server.

For whatever reason, whenever they check for updates, though there aren't any new ones, the PCs end up using all of their available RAM, even 1.3 and 2 GB just for the Windows Update service.

Interestingly enough, this doesn't happen to Windows 8 clients in our environment, they're just fine using only about 100 MB of RAM.

I have come across this thread https://social.technet.microsoft.com/Forums/windows/en-US/4a782e40-bbd8-40b7-869d-68e3dfd1a5b4/windows-update-scan-high-memory-usage but apparently that only addresses SCCM 2012 which we do not have at the moment.

I know for sure it's the Windows Update service on client machines because I've checked it via perfmon and whenever I stop the service from Task Manager on one of these machines that is checking for updates, about a whole gigabyte of RAM gets freed up.

Does anyone know of any fixes for this?

Thanks.

Improve this question
2
  • @Ramhound this also happens in Windows 8.x (see my picture)
    – magicandre1981
    May 26, 2015 at 17:20
  • Hi guys. This is definitely NOT happening to any of our Windows 8.1 Enterprise clients, only to Windows 7 clients. Any ideas?
    – Teeest
    May 27, 2015 at 9:55

3 Answers 3

Reset to default
0

I also have this in Windows 8 as you can see in the xperf Trace I captured and viewed in WPA:

enter image description here

There is no fix for this because the memory usage comes from the WindowsUpdate client DLL when it scans for Updates (wuaueng.dll!CAgentUpdateManager::FindUpdates). The rest of the memory usage comes from loading the Update database C:\Windows\SoftwareDistribution\DataStore\DataStore.edb into the RAM.

Improve this answer
4
  • Why isn't it affecting the OP's Win8 clients though?
    – Karan
    May 26, 2015 at 22:09
  • @Karan this happens when you have installed several additional updates (hotfixes) or other Microsoft Software (Office, Visual Studio, SQL Server).
    – magicandre1981
    May 27, 2015 at 4:23
  • Hi guys. This is definitely NOT happening to any of our Windows 8.1 Enterprise clients, only to Windows 7 clients. Any ideas?
    – Teeest
    May 27, 2015 at 9:54
  • I posted a link how to capture and analyze the memory allocations. Look if you see the same like I do in WPA. I talked to Microsoft about it. They know the issue but I have no idea if or when they fix it.
    – magicandre1981
    May 27, 2015 at 17:26
0

https://support.microsoft.com/en-us/kb/3050265 fixes this, Microsoft finally got their act together.

Improve this answer
1
  • FTR: this was the Windows 7 Update client for June 2015, outdated as of now.
    – red-o-alf
    Oct 28, 2016 at 8:48
0

In Win 7 SP1 Pro 64-bit, http://support.microsoft.com/en-us/kb/3050265 does not fix runaway RAM usage by wuauserv. After the fix has been applied and the PC has rebooted, wuauserv continues to eat 1GB and more of RAM. The service has to be stopped manually, eg find wuauserv in Task Manager/Services and stop the service.

Improve this answer
1
  • Turning off windows update it's not a solution, this should only have been posted as a comment, under @Teeest answer.
    – red-o-alf
    Oct 28, 2016 at 8:45

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .