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the processor doesn't support SLAT

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Friday, August 21, 2015 4:22 PM

I set up Server 2016 TP3 without gui.

Tried to install Hyper-V feature and got a message:

install-windowsfeature : A prerequisite check for the Hyper-V feature failed.

  1. Hyper-V cannot be installed: The processor does not support second level address translation (SLAT).
    At line:1 char:1
  • install-windowsfeature hyper-v -restart

I installed 2016 on my test box on which I wiped out Server 2012 R2 running Hyper-v.

The machine is Quad Core.

I believe that Hyper-V of 2012 required SLAT... because could not install Hyper-on on laptop running Windows 8.1 (and the message was about no SLAT).

When you hit a wrong note its the next note that makes it good or bad. Miles Davis

All replies (5)

Friday, August 21, 2015 4:52 PM ✅Answered | 1 vote

Hyper-V Server 2012 didn't require SLAT, But Windows 8.x Hyper-V did.

Now, all the server version does too.

If you have a Core 2 Quad core, you don't have SLAT.


Friday, August 21, 2015 4:54 PM ✅Answered

Hyper-V 2012 R2 did not require SLAT / EPT.   Windows 8.1 did.

Wdinows 10 / Server 2016 requires it (there is no way around the requirement).

Run coreinfo.exe with the -v swtich to see if your system supports it.

Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.


Friday, August 21, 2015 6:32 PM ✅Answered

You should still be able to install nano on bare metal.

Just cannot add Hyper-V to nano.

Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.


Friday, August 21, 2015 6:04 PM

I was ready to put my both labs machines into the garbage...

But just got an idea that I can install back 2012 and test 2016 and it's NANO.

Wanted to see NANO on bare metall...

Thanks!

When you hit a wrong note its the next note that makes it good or bad. Miles Davis


Friday, August 21, 2015 6:42 PM

sure... 2016 is installed without any problem. it is Hyper-V part that needs SLAT.

and Hyper-V in Nano should be cool...

When you hit a wrong note its the next note that makes it good or bad. Miles Davis