virtualbox.org

After installating Virtualbox 4.3.8 with 4.3.8 Additions on Win 8.1 Pro i can not change CPU Number. Under the System/CPU Tab the Slider for CPU is disabled. So i can only use one Core which is quite bad. VMPlayer works fine with more than 1 Core, so i think this should be an VBox Issue.

All other Functions seems to work properly.

I have 4Gig of RAM and Virtual Box is installed on a High Speed MicroSD Card, because i have a Tablet/Notebook Combination with a small Main SSD.

tobi

Post the guests log file ( as an attachment )

The guest needs to be shutdown to change most of the settings. Not running, not paused, not saved. Shutdown normally.

Thanks for the response. The VMs were normally shutdown when i tried to modify the cpu settings.

In the beginning of this week i deinstalled vbox, did some windows updates und reinstalled the newest version of vbox including extension pack (4.3.8) and now it works.

So the problem is gone. Thx 4 support.