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COM surrogate using 14/16GB of RAM

Joined
Jun 19, 2008
Messages
1,555 (0.25/day)
Location
Shepparton, Victoria, Australia
System Name Toaster!
Processor Intel Core i7 10700KF @ 3.8/5.1GHZ
Motherboard ASUS Prime Z490-P Motherboard
Cooling Noctua NH-D15 CPU cooler.
Memory G.Skill Trident Z RGB 64GB (4x16GB) 3600MHz CL16 DDR4
Video Card(s) ASUS ROG Strix GeForce RTX 3090 OC 24GB
Storage Samsung 970 PRO M.2 NVMe SSD 1TB
Display(s) Asus ROG PG43UQ 4K UHD 144Hz G-Sync HDR 43in + 2 x ASUS VG258Q FHD 144Hz Freesync 25in Monitor
Case Corsair Obsidian 900D
Audio Device(s) EPOS Sennheiser GSX 1000 V2 amplifier + EPOS Gaming GSP 601 Headset
Power Supply Corsair AX1000 Titanium Modular
Mouse Razer Deathadder
Keyboard Corsair K70.
Software ALL HAIL WINDOWS 10.
Benchmark Scores Old system: http://www.3dmark.com/fs/6805248
So my PC was lagging out a shit ton. Like my mouse was lagging all over the screen. So I CTRL ALT DELETE and open the task manager and to my amazement I find a process called dllhost with the description reading "COM surrogate" consuming a massive 14 GB of the 16GB of RAM. Upon ending the process the lag immediately stopped and it hasn't run again yet.

A google search yeilded no result I could put it down to.

Recent software changes. (I put this in General hardware as it may not be software related, move the thread if you think it needs moving.)

Tri Def 3D media player installed
Power ISO updated
Lastest AMD beta driver 14.7

Ok update. The process is back and now up to 2GB of RAM use and slowly rising.

Ok 1 result of google suggests this is 3D media player software related. But there's no other tridef 3D software running. I killed the process for a second time and it hasnt come back yet.

The process keeps coming back and slowly consuming more and more RAM.

Uninstalled a whole bunch of programs to no effect. Currently running AVG full PC scan.

As I was typing this the process rebooted and I touched nothing but this. AVG yeilded no results.

I'm out of ideas. Anyone got any recommendations?

EDIT: Process self ended.
 
Last edited by a moderator:
What OS are you using?
 
Probably just a memory leak
 
Well next time it appears right click on it in task manager and open file location, this might help uninstall it if you are sure you dont need it, to me it appears to just eat ram for nothing.(My opinion with no real research)
 
Could always just force-stop the service and prevent it from starting itself.
 
Could always just force-stop the service and prevent it from starting itself.
It restarts itself. How do I prevent it from stating in the future?
 
Well next time it appears right click on it in task manager and open file location, this might help uninstall it if you are sure you dont need it, to me it appears to just eat ram for nothing.(My opinion with no real research)


It restarts itself. How do I prevent it from stating in the future?

Do the above what silas said and if no uninstall file is found there, if none is found go tot he file location again and shut the program down and try renaming the file.
 
Ok. Hope this doesnt break my system
 
Some things to try...

Run "sfc /scannow" (no quotes and a space between the "c" and "/")
Check for a misbehaving codec.
Update your video software to the latest version... same if they supply codecs.
Update to the lastest video software for your GPUs or try an earlier version.
Run CCleaner's file AND registery cleaner (run the registry cleaner again until it finds no problems)

Read this for some insight into the "dllhost.exe process" --> What does the COM Surrogate do and why does it always stop working?
And, maybe, of some more help --> The Case of the Slooooow System
 
Last edited:
Some things to try...

Run "sfc /scannow" (no quotes and a space between the "c" and "/")
Check for a misbehaving codec.
Update your video software to the latest version... same if they supply codecs.
Update to the lastest video software for your GPUs or try an earlier version.
Run CCleaner's file AND registery cleaner (run the registry cleaner again until it finds no problems)

Read this for some insight into the "dllhost.exe process" --> What does the COM Surrogate do and why does it always stop working?
And, maybe, of some more help --> The Case of the Slooooow System

It hasn't shown up for 2 hours now.

Ive done the SFC and Ccleaner already. All drivers up to date.
 
Can you disable it in your services?
 
uninstall update KB267083 and IE10 for good measure its a known issue
com surrogate is the host process or COM related objects deleting or renaming it will break stuff or even render the machine unbootable
another but unlikely cause is broken video files causing the thumbnail cache to break if removing the aforementioned doesn't correct it disable thumbnail previews of video files
 
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