Does anybody knows something about hardware virtualization for beta can it be disabled?I mean for next beta that should be released in february?

No.
There is nearly nothing known about Windows 8 Beta.
And, all the info will be posted here : viewtopic.php?t=23461

X86 doesn't require hardware virtualization. x64 does.

Well, at least in the WDP the hardware virtualization is optional for installation and it is enabled only if the CPU supports it, and if the virtualization feature is enabled from BIOS.

The same thing should apply to the beta.

Also as Andrew said, this feature is only available in the x64 version

i dont agree x86 requires it it shows an blinking error without it

If it doesn't, all I know is that if you're virtualizing it it requires hardware virtualization. Both x86 and x86-64.