How to consume Unallocated space on HD

@zolotoy, do not lose your patience. I would believe that you should only consider any suggestion that does not destroy or delete any existing partition/s that should have been built as per Microsoft's technology papers.

Hard Drives and Partitions | Microsoft Docs

UEFI/GPT-based hard drive partitions | Microsoft Docs

Anyone recommending any deletion of the OEM partitions should also delineate the effects of deleting such partitions. So wait for some more time until someone experienced and knowledgeable comes up with the best way to annex the unallocated space to your drive C .

Hi CountMike,

Please give your opinion on Method 3 here Top Three Methods for Moving Unallocated Space to C Drive in Windows 10

As per that method if the OP marks C:, J: and the 232.88 GB Unallocated for merging, wouldn't it push the 1.96GB OEM partition and the 450MB OEM partition to the end without deleteing those?

After selecting those the OP can see whether that happens in the main interface and if it does happen, he can then "Apply" it.

@zolotoy, dont hurry and try to implement the above method. I would like to get the opinion of other knowledgeable members like CountMike and others first. And also I would like a confirmation from you that you can boot from the original system drive ( that is remove the current 500GB Disk 0, replace it with the original 250GB drive current Disk 3) should the other experts concurr that it may work and there is no harm in trying it out.

Yes, I can boot from my old drive (which disk 3 now). Are you asking that in case something goes wrong with my disk 0?

CountMike said:

Disk0, I would merge partitions after J: with J: Everything in front of it is necessary.

Do you mean merge all these partitions:

Also I can only merge two partitions at a time. Is that how I do it?

zolotoy said:

Yes, I can boot from my old drive (which disk 3 now). Are you asking that in case something goes wrong with my disk 0?

Exactly. If something goes wrong inadvertently - there can anytime be many a slip between the cup and the lip -, you can then reclone your original system drive.

If we decide to go through the method 3 of the referenced article Top Three Methods for Moving Unallocated Space to C Drive in Windows 10 using AOMEI Partition Assistant, I would like you remove Disk 1 ,Disk 2 and Disk 3 and keep them aside safely and have only the Disk 0 which we will be manipulating. I would also recommend that you copy any personal data on Disk 0 which you may not want to lose to another media before such manipulation.

I would still wait for some more time for other experts' opinion.

Note: I would insist again that you take full screenshots whether it is WDM, Partition Wizard or AOMEI Partition Assistant.

A lot depend upon if you ever want to possibly restore the factory software load or not. If you never want to restore the factory software load, then recovery partitions are completely optional. You can do everything by booting from a recovery or installation USB flash drive that you can do with the recovery partition, except for restoring the factory software load.

If you will never want to restore the factory software, then delete every partition to the right of C: drive, then expand C: drive to fill the newly created empty space.

Yes, I extended my C dive over all partitions on the right. Restarted the computer and everything seems to be working. Can I do the same to the partitions on the left side of the C drive?

Great!, thanks for all the help provided.