Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: dllhost.exe using up memory

22 Aug 2015   #1
bigseb

Windows 7 x64 Professional
 
 
dllhost.exe using up memory

This happened about an hour ago... noticed that all my RAM was being used up. Noticed Task Manager listing dllhost.exe using almost all the RAM. Rebooted and it came as soon as I opened an explorer window. Rebooted again with the same result.

Googling suggests a virus. Is it? I can end the process in TM but it reappears as soon as I open a window. And the RAM keeps climbing until it maxes out. Before I do a complete reinstall (busy backing up data) I would like to know if there is an easier method, assuming it is actually a virus.

Cheers!


My System SpecsSystem Spec
.
22 Aug 2015   #2
bigseb

Windows 7 x64 Professional
 
 

Further testing shows that the dllhost.exe can't be ended once but needs to be ended multiple times before it closes.
My System SpecsSystem Spec
22 Aug 2015   #3
PC LIZARD

windows 7
 
 

is it fix /////????? run heard protect..https://www.google.com/search?client...#q=herdprotect could be a bad update clean all temp files and see...my browers is open my AV is runing my CPU is at 0%
My System SpecsSystem Spec
.

28 Aug 2015   #4
bigseb

Windows 7 x64 Professional
 
 

Ok, I reinstalled my OS for a fresh start. Installed only the following software: Geomagic Design, Adobe Reader, 7zip, Makerware, Proftweak, MSE and the latest IE. This is software that I need to work. It was downloaded form the usual safe sources. That was on Sunday.

Last night (Thursday) the dllhost.exe issue was back. How? I trust the software I was using. I only went online to install IE and MSE (from the MS website).

Some more googlefoo revealed that this is either a Trojan (I don't think so because of my minimal install with trusted software and the fact that it is located in the Windows/System32 folder) or an issue relating to thumbnails. I will try later to apply 'view only as icons' to all folders and see if that helps or an issue with IE.

Would really appreciate some help here. Thanks.
My System SpecsSystem Spec
28 Aug 2015   #5
UsernameIssues

W7 Pro SP1 64bit
 
 

You might want to use Process Explorer to check the things that are running on your computer via VirusTotal:

Process Explorer 16
My System SpecsSystem Spec
02 Sep 2015   #6
bigseb

Windows 7 x64 Professional
 
 

Ok. Switched off thumbnails, using icons only. Problem solved. Thanks UserNameIssues.
My System SpecsSystem Spec
02 Sep 2015   #7
UsernameIssues

W7 Pro SP1 64bit
 
 

Thanks for posting the solution.

If you ever miss thumbnail, we might be able to locate/delete the offending thumbnail database file via Process Monitor.

Once the thumbnails are correctly generated, the memory usage should drop.
My System SpecsSystem Spec
29 Oct 2015   #8
Ukhoops

Windows 7 64 bit
 
 
dlllhost

how do you switch off thumbnails? I reboot computer or it bsods 98x a day and I see in task manager dlllhost.exe is running at over 1million kb with nothing ever opened at all since reboot???
My System SpecsSystem Spec
29 Oct 2015   #9
UsernameIssues

W7 Pro SP1 64bit
 
 

Quote   Quote: Originally Posted by Ukhoops View Post
how do you switch off thumbnails?...
Thumbnail Previews - Enable or Disable
My System SpecsSystem Spec
Reply

 dllhost.exe using up memory




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Dllhost.exe still persist in task manager, taking up cpu memory
Hi I'm new and I seriously need help I'm at my wits end, I tried everything and nothing works. Tried malware bytes, hitman, rouge killer, clean boot, went into safe mode. Changed codecs for the thumbnails. Nothing works. The dllhost.exe virus still persist. A temporary fix I found was disabling...
General Discussion
dllhost.32, com surrogate process uses 100% of memory
I am running Windows 7 Home Premium on an HP AMD II X2 240 I have read and reread answers to this problem for days. I have seen similar problems reported and none of the threads seem to end with a fixed computer. I am only computer literate enough to be dangerous. I can't put a finger when it...
General Discussion
Multiple instances of dllhost.exe*32 Com Surrogate killing memory
I am running Windows 7 64 bit premium home edition, 1.34TB HD and 8 GB Memory, IE 11 which I just installed. The last couple of days I've noticed my performance slowing to a crawl. My IE passwords and user names no longer load, Icons in my folders no longer load, the Progress Bar in each folder is...
General Discussion
dllhost.exe comp surrogate using large amounts of memory
Hello, since 11pm there have been around 30 to 50 dllhost processes listed in the task manager. before this, I was having problems with ads playing in the background with no visible cause i cannot remember what happened next, but I do know my computer started to run very slowly making it near...
Performance & Maintenance
dllhost.exe (COM Surrogate) consumes all CPU memory
Let me mention at the outset that I am an intermediate Windows user. I do not know the what-how-why of Windows registry values. Windows Task Manager is what I use to keep a watch on different processes running on the computer. Lately, I have started encountering this problem of dllhost.exe...
Performance & Maintenance
dllhost.exe Memory Leak
I have a Windows 7 Professional laptop with an Xbox 360 connected to it via the Media Center Extender function. When I try to play a video file from the laptop on my Xbox, a process called "dllhost.exe", owned by the user "Mxc1-(COMPUTER NAME)" starts taking up all my RAM until it uses all 3GB...
BSOD Help and Support


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 20:03.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App