VirtualBox

Changes between Initial Version and Version 1 of Ticket #12458, comment 24


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Timestamp:
Nov 10, 2014 4:29:49 AM (10 years ago)
Author:
jcespejog

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  • Ticket #12458, comment 24

    initial v1  
    22My VB 4.3.18 (on windows 7.Pro x64 sp1 host) is no longer supporting 64bits guest systems,
    33First I could load/create 64 bit VM but after I reinstalled VB, 64 bit guest system couldn't load and I realized VB does not allow me to create new 64bit guest system and the previous 64 bit guest system I successfully created was being recognized as 32 bit.
     4please help me on this issue...
    45What is happening? how can this be corrected? why my VB is no longer supporting 64 bits?
    56see bellow some notes about this issue and please let me know if there is something to do to get VB fully functional supporting 64 bits
     
    1011#2 VM 'Win7x64_Template' (windows 7.Pro-x64 guest) successfully created and running
    1112#3 Since USB was not being recognized on the guest I reinstalled VB v4.3.18 (using 'run as administrator' option)
    12 #4 I tried to load the guest ('Win7x64_Template') but it couldn't load showing an message loop 'Windows is loading files'. After some research, I realized that it is due VB is not supporting 64bits. Indeed, I could see I am no longer able to create 64 bit VM. Also the VM I previously created was not being recognized as 64 bit system but 32 bit. Besides, 'acceleration' options is grayed-out on VM settings
    13 #5 Additional research performed (related to VB not supporting 64 bit), and I found that it is related to Virtualization support on BIOS. I could see that option is not enable on my BIOS (and it cannot be activated as the check box is disabled). I read this option comes not enabled by default. So, why 64 bit is no longer supported on my VB if I made no changes on HW nor any configuration (like BIOS level) and considering that this was working prety well prior I reinstalled VB?
     13#4 I tried to load the guest ('Win7x64_Template') but it couldn't load showing an message loop 'Windows is loading files'. After some research, I realized that it is due VB is not supporting 64bits. Indeed, I could see I am no longer able to create 64 bit VM. Also the VM I previously created was not being recognized as 64 bit system but 32 bit. Besides, 'acceleration' options is grayed-out on settings of VM 'Win7x64_Template'
     14#5 Additional research performed (related to VB not supporting 64 bit), and I found that it is related to Virtualization support on BIOS ('Virtualization technology' opcion). BTW that option was not enable on my BIOS (so I activated that option on my BIOS BUT nothing happend, I mean issue with 64 bit support persist after this change). I read this option comes not activated by default and that this is not mandatory for 64 bit support. As after enabling that option 64 bit support was still absent, I think that option is not mandatory to have 64 support working. So, why 64 bit is no longer supported on my VB if I made no changes on HW nor any configuration (like BIOS level) and considering that this was working prety well prior I reinstalled VB?
    1415#6 I am using a laptop proBook 6460b

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