Error to open VM session

[h.sabatou]

Hi,

I have an error when I want to open some VM with windows 7


Code d'erreur :
RPC_S_SERVER_UNAVAILABLE 0x800706BA (0x800706BA)
Composant :
ProgressProxy
Interface :
IProgress {c20238e4-3221-4d3f-8891-81ce92d9f913}

Is anybody know how to solve this issu.

Regards,

[h.sabatou]

I add more informations :
Host : windows 7 Pro SP1 x64
Guest : windows 7 Pro SP1 x64
Virtualbox release : 4.3.24

[Perryg]

Have you upgraded VirtualBox recently and if so did you also upgrade the extension pack?

[h.sabatou]

In fact, I had the same problem with the previous release.
So I have tried to install the last one and I have also installed the last extension pack.

[h.sabatou]

That's strange because other Vm with widows 8.1 run correclty
There are only both Vm win 7 x64 and win 7 x32 wich have this issu.

[Perryg]

Was the offending guest/s shut down before you upgraded or in a saved state? If it was a saved state you will need to discard the saved state to get it to work again.

[h.sabatou]

I have succeeded to recreate new vm with the sames vdi files.
So I don't have any probleme to start the vm

Thanks for your help