How to reinstall Windows 10 onto a corrupted PC from an ISO image

Unless you are able to decrypt them, I would say no on the basis of your system disk.

If you have a functional version of at least your Windows partition- whether in your image file or on your system disk, then you can.

When you created your disk image, did you use the option in MR to select all partitions comprising your Windows installation (typically 4 for UEFI e.g.) or did you just image C: ?

If you imaged all, you should be able to restore your system from that.

If you have a valid C: only then you can
- clean install Win 10
- check it boots
- restore the image of C: in place of the newly created C:
- either automatic repair will kick in, or use Startup Repair to get Windows to boot up.

My Windows 10 Pro was a free upgrade from 7 Pro so I don't have a product key.

This is a common misconception. Licensing is via digital entitlement on MS's activation servers and is related to your hardware ID.

You can freely reinstall Win 10 as many times as you like, and if you have a retail license, move that to a different PC.

I would persevere with restoring the Reflect backup as posted above

Assuming you originally imaged all the partitions as stated above, have you tried the Macrium "Fix Boot" option after restoring the image? A lot of the time this is all that is needed. Just a thought.

KennebunkLarry said:

Is there a way I can save my programs and reinstall Windows 10?

I would say, probably, no.

A lot of users would reject the idea of a clean install and having to re-install all programs. But I would look at this way, without an accessible and workable image, this is no different from what would have happened if it had been a hardware (drive) failure ... something that any/every computer owner/user might have to be prepared to face at some stage.

If you have the Macrium boot media then you can boot from this & restore an image that way, there’s also a repair boot option if there’s a problem.
If you didn’t create this boot media then you should be able to download Macrium on another Windows device & create one on this.
When you created the image did you ensure all partitions were selected?
I agree with Dalchina’s suggestion to clean install Windows then recover the C partition from Macrium.

Since I can't start Windows, how can I access Macrium to try Fix Boot? Thanks.

The fixboot utility is on Macrium's boot disk. Naturally you'd need access to a working PC wiht MR installed to be able to create it.

winload.exe -
FIX: Winload.exe issues in Windows 10

Appears to indicate my first post should help you.

Pejole2165 said:

Assuming you originally imaged all the partitions as stated above, have you tried the Macrium "Fix Boot" option after restoring the image? A lot of the time this is all that is needed. Just a thought.

Exactly. Macrium Reflect is not only the best backup and imaging solution, it is also an excellent tool to fix Windows boot issues.

KennebunkLarry said:

Since I can't start Windows, how can I access Macrium to try Fix Boot?

Bastet said:

If you have the Macrium boot media then you can boot from this & restore an image that way, there’s also a repair boot option if there’s a problem.

If you have no Macrium rescue media, this does naturally not work. But, as esteemed fellow geeks have already told you, using Macrium rescue media to boot your PC, you most probably can fix this quite easily.

First, boot from Macrium rescue media, and select Fix Windows boot problems on left pane:


(Click to enlarge screenshots.)

Select your OS, and click Next:



Click Finish:



When Macrium has restored the boot configuration, restart the PC and you should be OK.

Kari