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Install Windows from another RUNNING Windows

ratiw
By ratiw
in Windows
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Posted

Circumstances:

one pc

2 partitions

one Windows already installed and running

 

my question:

is it possible to install in the second partition another copy of Windows but perform the installation from the running Windows already installed?

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If you open the disk image in the running Windows, yes, I believe it is possible to install a second instance on the other partition.

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I run the iso from the runnig windows but it then makes you restart the pc and install it the normal way, I was trying to find a method to install it as described because I believe it could be much quicker.

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You cannot install fresh copy of Windows from a existing instance of Windows. You have to boot to the installation media to install windows to another location.

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On 4/17/2021 at 4:11 PM, ratiw said:

I believe it could be much quicker.

It isn't. If anything, it would be slower since hardware is already in use by the OS. While in installer, it only uses hardware.

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