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Windows 7: virtualbox and UEFI BIOS

14 May 2016   #1
mikef2

win 10 home 64-bit
 
 
virtualbox and UEFI BIOS

My PC is a DELL AIO. The factory setting is UEFI/GUID partitioning.

I want to install VirtualBox version 5, into a separate GUID partition,and then install Windows 7 PRO from an ISO, into that separate VirtualBox partition.

Am I right in thinking that the Windows installer will create the normal legacy MBR partitioning scheme (just within the new VirtualBox partition) ,into which I can then install Windows 7?

Also will I be able to launch Windows 7 from the VirtualBox?

{I know this 2016, but I want to install Windows 7 on my Dell PC, for a special reason.]



My System SpecsSystem Spec
.
14 May 2016   #2
strollin

W10 Pro desktop, W10 laptop, W10 laptop, W10 Pro tablet (all 64-bit)
 
 

You don't want a new partition for VirtualBox. The VHD that VirtualBox creates for a VM you create is actually just a file on your system that is used to virtually mimic a real disk and will have it's own virtual partition and such. The VM will also have it's own BIOS so installing a VM doesn't have any effect on your BIOS or partitioning of your host machine.

When you create your VM for Win 7, durng installation the installer will take care of creating the partitions it needs within your VHD. You pretty much treat the VM as you would a physical machine.

If your listed system specs are for the Dell AIO and you have only 4GB of RAM, things may get a little sluggish because you will actually be running 2 copies of Win 7. Make sure when you create your VM you don't allot more than 2GB of RAM to it.
My System SpecsSystem Spec
14 May 2016   #3
mikef2

win 10 home 64-bit
 
 

Hi Strollin,
Thanks for your very quick reply.
In one short message, you managed to explain how virtulization works!
One extra detail that I failed to mention. My Dell PC has 12GB of memory and is running Windows 10..
Does your comment about restricting the size of the VM to not exceed 2GB, still apply?
My System SpecsSystem Spec
.

14 May 2016   #4
UsernameIssues

W7 Pro SP1 64bit
 
 

You can set the RAM for more than 2GB - however, the RAM needed depends on the tasks done in the VM. I have W7 Virtualbox VMs that work fine with only 512MB of RAM. Just use the default settings when setting up the VM. You can change them later.
My System SpecsSystem Spec
14 May 2016   #5
strollin

W10 Pro desktop, W10 laptop, W10 laptop, W10 Pro tablet (all 64-bit)
 
 

My comment regarding RAM was based on your listed specs which say you have 4GB of RAM not 12GB. With that much RAM you can easily allot 4GB or so to your VM if needed without choking your host system. The key is that whatever RAM you allot to your VM is RAM that won't be available to your host machine while the VM is running.
My System SpecsSystem Spec
15 May 2016   #6
mikef2

win 10 home 64-bit
 
 

Thanks so much for your help
My System SpecsSystem Spec
15 May 2016   #7
mikef2

win 10 home 64-bit
 
 

Quote   Quote: Originally Posted by UsernameIssues View Post
You can set the RAM for more than 2GB - however, the RAM needed depends on the tasks done in the VM. I have W7 Virtualbox VMs that work fine with only 512MB of RAM. Just use the default settings when setting up the VM. You can change them later.
Thanks very much for your help
My System SpecsSystem Spec
15 May 2016   #8
mikef2

win 10 home 64-bit
 
 

Quote   Quote: Originally Posted by strollin View Post
My comment regarding RAM was based on your listed specs which say you have 4GB of RAM not 12GB. With that much RAM you can easily allot 4GB or so to your VM if needed without choking your host system. The key is that whatever RAM you allot to your VM is RAM that won't be available to your host machine while the VM is running.
Thanks once more for your informative assistance.
My System SpecsSystem Spec
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 virtualbox and UEFI BIOS




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