Hello,

I have a problem with virtualbox on win10 pro x64 + i4710HQ :

When I can get a UT VB I got this msg:
VirtualBox jobs require hardware acceleration support. Your processor does not support the required instruction set.

While CPU - Z tells me well this VT - X (enabled in the bios) and that if I created a virtual machine with VirtualBox I have hardware acceleration of valid...

Hyper-V is off

Test with the package boinc+virtualbox and the last version of vb => same pb

An idea:?

You didn't say what version of Vbox you are running but they have been fixing various Win10 compatibility issues recently. As of today they're up to 5.1.14. However some project supplied VM's may not behave with it so as they say your mileage may vary.

---

MarkJ

Thks for the response

boinc_7.6.33_windows_x86_64 + VirtualBox-5.1.14-112924-Win.exe
or
boinc_7.6.33_windows_x86_64_vbox.exe
or
boinc_7.6.33_windows_x86_64 + VirtualBox-5.1.12-112440-Win.exe

=> same error

If you at some point tried to run VirtualBox tasks with VT-x disabled BOINC remembers that. Right now the only way to make BOINC forget it is to edit one of its files.

First shutdown BOINC client, either select File -> Shutdown connected client or exit BOINC Manager and tell it to shutdown running science apps. Open Windows' Task Manager and make sure boinc.exe is not running.
Find BOINC's data directory, usually C:\ProgramData\BOINC, and open client_state.xml file in Notepad (don't use other editors) and find the following line:

<p_vm_extensions_disabled>1</p_vm_extensions_disabled>

Change the 1 to 0, save the file and restart BOINC. If the line is not in the file or it's already 0 you have some other problem.

Thank you very much this manipulation is the right I don't have the error message and tasks are loading!

Thks