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Downgrade to 9.8

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1 discussion post
display fusion 9.9 is causing very high CPU Usage when playing games.
There are other threads regarding this issue and i am not interested in installing several Beta versions to try one that works.

it is using 40% or more CPU. Closing the game does not work, as the usage remains high until Multi taskbar is disabled.
I am on steam so my key is not valid for 9.8.
I installed the 9.8 free trial version and there are no issues.

how can i install 9.8 with my steam license?
Jun 26, 2022  • #1
Owen Muhlethaler (BFS)'s profile on
You can run this installer directly overtop of your current install to roll back:

We also have some changes coming up in our next beta that should improve the CPU usage if you would like to test it out when it's released.

Jun 27, 2022  • #2
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35 discussion posts
We also have some changes coming up in our next beta that should improve the CPU usage if you would like to test it out when it's released.

How soon? High CPU has been an intermittent issue on my Win10 system, and seems to be related to the explorer.exe instance, which I generally have to kill and re-launch from task manager before my system starts acting normal again.
This has been an ongoing issue with the latest beta cycle, which I've been working around because I've been too busy to report on (hoping others would do it for me :), and I came to the forums today to see if others have in fact been having the same issue.
Jun 29, 2022 (modified Jun 29, 2022)  • #3
Owen Muhlethaler (BFS)'s profile on
No ETA yet, as we're still working on it :)
Jun 30, 2022  • #4
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Cyril Christin
1 discussion post
After +10 years of *perfect* DisplayFusion automatic updates, the update to 9.9 on Win7 is much much heavier in resources usage CPU/RAM/IO!

It is to the extent that I noticed this on a machine where DisplayFusion should not be able to be noticed and yet noticed the problem recurring over and over the last months ... having ended up implementing a *temp* fix of killing the process and re-launching DisplayFusion.

DisplayFusion.exe 9.9 has more CPU usage time than Explorer.exe ... much more I/O usage ... an insane +4GB RAM peak usage ... and seems to be "looping" over while possibly waiting on user input (User32.dll!WaitMessage) with the dialog/input not visible to the user :(

I'm going to call it for now:
- DisplayFusion 9.8 is the last *functional* version to be really run smooth on Win7, which is perfectly understandable since Win7 is no longer maintained!

Hopefully, this problem is only related to Win7 :)

Thank you for the amazing software and all the included updates since 2010!
Nov 18, 2022  • #5
Keith Lammers (BFS)'s profile on
@Cyril: Could you try the latest 10.0 beta? We've made some performance improvements in the last few betas that should help.
Nov 18, 2022  • #6
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