Making technology work for you...

Get Your Free Subscription By Email:

Fixing dllhost.exe Constant CPU Usage And Memory Leak

A long ago we shared a solution for "Windows 7 Lock-up While Using Windows Photo Viewer" which involved dllhost.exe's incompatibility with Kaspersky Antivirus. I recently faced a similar issue where Microsoft's genuine dllhost.exe file was constantly using 25% of CPU with ever increasing RAM (a memory leak) consumption, this time it was not the Kaspersky incompatibility causing the issue but a Windows 7 bug how it handles thumbnail generation. The reason for the issue was a broken video download on my Desktop, Windows was trying to generate thumbnail for that broken/incompatible video file and failing causing the constant CPU usage - the solution was to simply delete the problematic file or move it to a inner folder in which case the problem will occur only when accessing that particular folder.

dllhost.exe causing high cpu and RAM usage


nimd4's picture

On Windows 7, using the Windows key + R to bring up the Run... box and typing-in the location:
%appdata%\Microsoft\Windows\Network Shortcuts

.. You can make folders there that'll show up in "Computer", "Network Location", under your "Hard Disk Drives" & "Devices with Removable Storage" - and hopefully, store stuff here - that you'd usually keep on the desktop; avoiding such and similar issues. Not sure whether there is a Windows 8 equivalent.

Oh, there is, nice! @

Add new comment

This is just one of the many helpful tips we have posted, You can find more stories here,
Do subscribe to updates using your favorite RSS feed reader or using the secure FeedBurner email update form on top of this post.