virtualbox.org

Hello everybody, i have problem with my virtualbox, and can't solve this problem. I want start with my PC assembly.
Laptop Dell g315 with:
1660 ti max-q
12gb ram 1 ram(4gb), 2 ram(8gb)
intel core i7-9750h
windows 10 home version - main system
virtual box 6.1.
When i try install any OS i have trouble check picture. How this fix?

Start the guest from full normal shutdown, not save-state. Run until you see the problem happen, then shut down the guest from within the guest OS if possible. If not possible, close the Virtualbox window for the guest with the Power Off option set.

Right-click the guest in the main Virtualbox window's guest list, choose Show Log. Save the far left tab's log, zip it, and post the zip file, using the forum's Upload Attachment tab.