Windows 7 to 10 upgrade stuck on reboot

[RudolfVonKrugstein]

Hey,

Did anyone succesfully upgrade a windows 7 guest to windows 10?
I changed the settings for the cpu, and the upgrade starts. But on reboot, it gets stuck with the windows logo.

Thanks!
Nathan

[CyberManifest]

I'm having the exact same experience.
Host machine MacBook Pro OS X Yosemite running Virtualbox 5.
Attempting to upgrade Windows 7 guest to Windows 10.

[RudolfVonKrugstein]

Hey,

I got the installer running, doing the following:

* Create a new VM for Windows 10, but use the windows7 vdi
* Start it (windows 7 booting up) and re-enter the activation key
* Now upgrade to windows 10

That worked for me ..

Best,
Nathan