Just installed 4.3.12, build 9926. For reasons I won't go into right now (extensive), the newest builds of VBox crash immediately in Windows 10 Home Edition.
Build 4.3.12 will actually start Vbox without crashing on startup. However I cannot start the Ubuntu1 that came with it. It launches a dialog that says "Cannot access the kernel driver!" and gives this error information:
Result Code: E_FAIL (0x80004005)
Component: Machine
I restarted my host as was recommended in the forums. No success.
After digging around (did not change any settings) I opened the Virtual Media Manager and the Ubuntu.vdi is located in E:\Ubuntu.vdi. I hovered over the VDI file and there is a VERR_PATH_NOT_FOUND there. This makes sense to me since I have no E:\ connected to the host machine right now so it's looking for the .vdi in a non-existent location.
So what are my options here to get Ubuntu running? Should I download a new Ubuntu.vdi file and put it somewhere VBox can find it? If so, where is a secure place/URL to download the file from, and what is the optimal folder destination to download the .vdi to?
.vdi
is a Virtual Disk Image. You can create one when you create a VM in VirtualBox. You don't download them, because they can get big very quick. (They are just disk images).