Virtualisation fault

Takaharu · Sep 4, 2011, 12:14 AM

About a week or so ago I found that I can no longer run 64-bit virtual systems; the message is "the host is VT capable but VT is disabled". This is with VMWare and with Virtual PC. I've already gone through and reset my BIOS and even updated it to the latest version but to no avail. As far as I'm aware nothing had changed in my BIOS anyway though I could be wrong. It didn't bother me at the time as I only had one 64-bit system but as I now have more RAM to work with I'd like to use some 64-bit systems some more. 32-bit works fine.
Forgot to add - this started before the RAM upgrade.

Any suggestions will be taken into consideration.

CJLMTLCA · Sep 4, 2011, 10:19 PM

Virtual PC doesn't support 64 bit OS's ?

Takaharu · Sep 4, 2011, 11:55 PM

Didn't know that as I only tried it out for the first time when I found that VMWare wasn't working with 64-bit. Still, it wouldn't explain why VMWare doesn't work with it any more.

CJLMTLCA · Sep 5, 2011, 01:02 AM

Never used VMWare, so i just checked and it does support 64bit guests. Other than enabling VT in the BIOS and VT Hardware Support (or whatever it's called) in the program itself, i don't know what could be wrong. A recent install/update defaulted your settings?

caqde · Sep 5, 2011, 06:23 AM

For VMware to work with 64bit as far as I know (as I have never had an issue with running a 64bit OS in it) the BIOS needs to be set with virtualization on (normally defaulted to off in most BIOS's I have used) and you need to be running a 64bit OS which it seems that you do by your specs. Other then that I would check to make sure VMware is set up correctly, but it should be fine by default.

In your BIOS I would make sure Intel Virtualization Tech and NX bit are enabled under advanced -> CPU along with Intel VT-d in advanced -> Chipset (These directions are based on the BIOS manual for the Motherboard listed in your specs Asrock may have changed names and or locations of these features in future updates.) Hopefully turning these on will fix your problem.

Takaharu · Sep 5, 2011, 08:03 AM

I sorted it. I reset the BIOS, chose all of my usual settings again and it now works.
Strange, really; I don't see any difference in the settings.

VT-d and Virtualisation Tech were enabled already by the way.

Sep 4, 2011, 12:14 AM	#1
Takaharu I can fart in 7 languages Join Date: Aug 2009 Location: England, UK Posts: 1,850 Rep Power: 113 System Specs	Virtualisation fault About a week or so ago I found that I can no longer run 64-bit virtual systems; the message is "the host is VT capable but VT is disabled". This is with VMWare and with Virtual PC. I've already gone through and reset my BIOS and even updated it to the latest version but to no avail. As far as I'm aware nothing had changed in my BIOS anyway though I could be wrong. It didn't bother me at the time as I only had one 64-bit system but as I now have more RAM to work with I'd like to use some 64-bit systems some more. 32-bit works fine. Forgot to add - this started before the RAM upgrade. Any suggestions will be taken into consideration. __________________ I don't get paid to know the answer, therefore I'm far more likely to give you a straight and honest answer. Mods Rig, Box Mods Rig, Folding details

Sep 4, 2011, 10:19 PM	#2
CJLMTLCA 14X Join Date: Jan 2006 Location: Montreal, Canada Posts: 633 Rep Power: 63 System Specs	Re: Virtualisation fault Virtual PC doesn't support 64 bit OS's ? __________________

Sep 4, 2011, 11:55 PM	Thread Starter #3
Takaharu I can fart in 7 languages Join Date: Aug 2009 Location: England, UK Posts: 1,850 Rep Power: 113 System Specs	Re: Virtualisation fault Didn't know that as I only tried it out for the first time when I found that VMWare wasn't working with 64-bit. Still, it wouldn't explain why VMWare doesn't work with it any more. __________________ I don't get paid to know the answer, therefore I'm far more likely to give you a straight and honest answer. Mods Rig, Box Mods Rig, Folding details

Sep 5, 2011, 01:02 AM	#4
CJLMTLCA 14X Join Date: Jan 2006 Location: Montreal, Canada Posts: 633 Rep Power: 63 System Specs	Re: Virtualisation fault Never used VMWare, so i just checked and it does support 64bit guests. Other than enabling VT in the BIOS and VT Hardware Support (or whatever it's called) in the program itself, i don't know what could be wrong. A recent install/update defaulted your settings? __________________

Sep 5, 2011, 06:23 AM	#5
caqde HardwareHeaven Senior Member Join Date: Oct 2002 Location: US, IL Posts: 505 Rep Power: 66 System Specs	Re: Virtualisation fault For VMware to work with 64bit as far as I know (as I have never had an issue with running a 64bit OS in it) the BIOS needs to be set with virtualization on (normally defaulted to off in most BIOS's I have used) and you need to be running a 64bit OS which it seems that you do by your specs. Other then that I would check to make sure VMware is set up correctly, but it should be fine by default. In your BIOS I would make sure Intel Virtualization Tech and NX bit are enabled under advanced -> CPU along with Intel VT-d in advanced -> Chipset (These directions are based on the BIOS manual for the Motherboard listed in your specs Asrock may have changed names and or locations of these features in future updates.) Hopefully turning these on will fix your problem. __________________ AMD Phenom II X4 925 AM3/ Giga-byte MA790XT-UD4P XFX HD5770 1GB / 2x8GB of Geil DDR3 12800 10-10-10-28 Samsung SH-S182D DVD-RW drive / Sony Optiarc BD-5300S BD-RW drive Western Digital WD1501FASS(Primary)/Western Digital 15EADS(Secondary)/Western Digital 7500AACS(Secondary)/Seagate Barracuda 7200.10 320gb(Secondary) Antec TP-550 / CoolerMaster CMStacker Sound Blaster X-FI Titanium Fatal1ty Professional / Creative Inspire 6600 6.1 speakers Samsugn T200HD 20" LCD Monitor / Logitech Internet 350 Black Keyboard Logitech MX510 Mouse

Sep 5, 2011, 08:03 AM	Thread Starter #6
Takaharu I can fart in 7 languages Join Date: Aug 2009 Location: England, UK Posts: 1,850 Rep Power: 113 System Specs	Re: Virtualisation fault I sorted it. I reset the BIOS, chose all of my usual settings again and it now works. Strange, really; I don't see any difference in the settings. VT-d and Virtualisation Tech were enabled already by the way. __________________ I don't get paid to know the answer, therefore I'm far more likely to give you a straight and honest answer. Mods Rig, Box Mods Rig, Folding details