New answers tagged microsoft-virtual-pc
You need to remove the Virtual PC "Guest Additions" (under Virtual PC), then install the Virtual Box "Guest Additions" after you boot the VM under VBox.
I would like to add another solution (thank You @Brian Nixon for inspiration). Same thing happened to me after KB2830477 update. It is also related to Remote Desktop and "lets you use the new Remote Desktop Services features" ;-) Best regards, Lucas
I changed the disk from dynamic to fixed disk, then created with fdisk the new drive. Then i rebooted, 'del' for bios, changed to boot from CD/DVD (.iso). Then formated C: and it worked.
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