DVR20 -- installer doesn't work on ARM laptop

I've been running beta 1 .. then beta 2... with no problems on my Windows ARM laptop.
(Windows 11 Enterprise, 24H2 .. build 26100.3983. it's up-to-date).


A few days ago I tried installing beta 3, and got an error message immediately after accepting the windows "do you authorize this application to make changes to your system?" dialog box.

the error is:

"The application was unable to start correctly (0xc00000bb). Click OK to close the application. "

Today the final version came out...and the installer has the same problem.


Have other folks seen this? Got a workaround?
I'm a little nervous about uninstalling beta 2.

(attached a diagnostic log from the WORKING beta 2 build...)

Just curious -- has anyone with a Windows ARM laptop been *successful* at installing B3, B4 or final? Did you need to uninstall first or did it "just work"?

Today I finished a project I was working on -- then *uninstalled* the Beta 2 I've been using, in hopes that an uninstall would make the install work. it didn't.

Same error -- and now I have NO working version of Resolve running on my laptop.

Just sent an email to Resolve Support ... but I'm hoping to not to be stuck all weekend without a working laptop. ANyone have other ideas/suggestions?

[Peter Chamberlain]

Can you detail your machine hardware config, and also confirm you are trying to install the specific v20 for ARM?

thanks for reaching out, Peter! (machine info at the top of the post -- and yes, was definitely installing the ARM version with each beta.)

UPDATE: some Microsoft engineers helped me out and GOT THE ISSUE RESOLVED! I'm now happily running DR20!

The problem arose because my laptop is in an early-ring of testing some software, so I had CHPE enabled with hotfix servicing-- and that caused problems for the installer.


More info on the problem:
https://learn.microsoft.com/en-us/windo ... 4-cpu-only

The simple fix is to disable CHPE as the article describes ... here's a regedit command that does this easily if anyone else runs into this problem! Just run this in a cmd prompt or powershell (might have to be admin)

reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v HotPatchRestrictions /d 0x1 /t REG_DWORD /f 


NOTE: the first symptom of this was the inability to install/update the Resolve COntrol Panels. After that I couldn't install anything. Will update that thread as well.