Unable to install Davinci resolve

I tried to install Davinci Resolve 15.1 on a windows 7 virtual machine.
On launching I get the error message :
" Le point d'entrée de procédure ClEnqueueMarkerWithWaitList est introuvable dans la bibliothèque OpenCl.dll"

What can I do ?
If there is nothing known to fix that, how can I uninstall ?

Thanks by advance for your answers

Does the VM instance show the Nvidia card? It is notoriously difficult for a VM to pass through the GPU. Resolve has very specific GPU requirements.

Two issues at play.

(1) Windows 7 is not a supported OS when used with Resolve version 14 or 15.

(2) Resolve has issues running in a VM, since, as Igor notes above, VM environments do not necessarily allow direct access to the GPU hardware.

Thank you for your answers.
I found by myself - too late - that Davinci Resolve 15 was not supported by windows 7
Bad luck it is not supported by osX 10.10 my present system.

Do you know how to uninstall the version 15 and download a former version ?
Thanks