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Can I swap two different hdd's after a Universal Restore?

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Here is the situation. I have a flaky mb on a computer.  I intend to purchase a Dell computer today with its own Win 10 clean install.  I want to take the old hdd (Win 7) and move it to the new computer, which I assume is best done by using a new hdd and universal restore with the backup image of the Win 7 install. (I will read up on this)

If I am successful, can I swap out the two hard drives (for example, I have a 90 period to return the new computer) without having to change out any BIOS settings after creating the Univeral Restore hard drive?  I don't understand whether the necessary drivers that are installed alters the BIOS or whether they are just on the hdd and used by the OS.

Thanks

Ken K

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Ken, there are more considerations here than just moving your old HDD and moving it to a new computer.

The boot mode used for both computers should ideally be the same, i.e. both UEFI if possible.  If the Win7 computer is MBR / BIOS, then a conversion needs to take place during the backup image restore to the new computer if that uses UEFI by booting the Acronis Rescue Media in UEFI mode.

The disk controller mode should be the same, i.e. both AHCI for SATA.

Your Windows 7 OS should be a full retail version (or equivalent) that allows the licence to be moved to different hardware.  If Windows 7 is an OEM version as installed by the old computer manufacturer (Dell, HP etc) then this is only valid on the original hardware and a new licence will be needed.

Universal Restore does not make any changes to the BIOS settings as far as I am aware - all changes are purely to substitute generic drivers needed by Windows for new hardware encountered, or to install specific drivers for any new hardware for which no drivers exist either in the restored OS or as provided by Windows itself.  Note: it is only the disk controller and motherboard chipset drivers that are normally needed.  Other drivers should be installed once Windows is running on the new computer.

Acronis Universal Restore does not guarantee that your restored Windows 7 OS will work on the new computer hardware, so would strongly recommend trying these actions using a spare HDD in the new computer and putting the Windows 10 drive to one side as a safeguard.

Not sure that I understand the question about swapping out the two hard drives in this context?

In reply to by truwrikodrorow…

Thanks for your detailed explanation, Steve.  WRT the swapping of the drives, I plan on removing the hdd that comes with the new computer and keeping it aside.  If I need to return the computer, then I figure I could just pop it back in.  

Yes, the license for the Win 7 is full retail license.

Thanks

Ken K