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I'm getting this error:

"This kernel requires an x86-64 CPU, but only detected an i686 CPU"

I have enabled:

  • Virtualization in BIOS
  • VT-x
  • Nested Paging

but I still get this problem while installing 64 bit Linux Mint Cinnamon over my 64 bit Windows 8.

My processor is an AMD A4-4300m.

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Did you check to make sure all the relevant BIOS settings are enabled? – user55325 Sep 19 '13 at 3:44
i think so , its in virtual box , so i didnt change the secure boot etc options in BIOS. – Somjit Nag Sep 19 '13 at 4:53
Sometimes there are other extensions than VT-x, like I/O virtualization (VT-d). If you have any of those, try disabling them (but leave VT-x enabled). Sometimes they cause problems. If they're already disabled, try enabling them. – user55325 Sep 19 '13 at 5:00

In the VirtualBox settings for the virtual machine, on the general -> basic tab, make sure the "version" for the "linux" type is set to 64-bit and not 32-bit.

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