The electricity cut off when I merge two partitions .

It's highly recommended to create an Entire Disk Image backup before making any partitioning changes. If you made one, I'd might suggest that you restore it and then try again.

For what it's worth, I don't recommend using either the Merge or Split features of DD. I much prefer doing the steps manually so I have control over it.

Was either D: or E: a Logical partition?

Is anything on the "DL" partition? You'd need to assign a drive letter to it.

If you have room on another drive and don't have a backup, you might want to consider creating a sector-by-sector backup of the entire drive before making any changes. It's impossible to tell by looking at a screenshot what state the Merge was in when the power was lost.

MudCrab wrote:

I much prefer doing the steps manually so I have control over it.

So, how can you join them together ?

MudCrab wrote:

Was either D: or E: a Logical partition?

Just D :, E is pr

MudCrab wrote:

Is anything on the "DL" partition? You'd need to assign a drive letter to it.

I have done ; after assigning it have appeared but nothing in those foder ,although it's only 81.3G free /244 G

MudCrab wrote:

It's impossible to tell by looking at a screenshot what state the Merge was in when the power was lost.

Unfortunately I turned LCD off , before that it's at 1%

Thank you again for your help !

A manual merge is accomplished by copying files off of the partition being removed and placing then onto the partition being kept (they can also be stored elsewhere). Then the partition being removed is resized smaller the other partition is resized larger. Then more files are copied, partitions are resized again, etc. This continues until all files have been moved. If you don't have many files to move or have enough space on the partition being kept, multiple passes don't need to be made.

Another option is to make a backup of the partition being removed, delete the partition, resize the other partition, and then restore the files to the partition.

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The partition sizes you give in the first post don't really make sense with the screenshot. Do you know what the original sizes were for all the partitions on the drive?

Has the original size of the C: partition changed?

Is C: still intact? I assume it is, as it looks like you booted into Windows.

Were any files from D: copied to C:?

If the "DL" partition is not valid, you could use DD to delete it (don't wipe it or anything like that) and then see if the Recovery Expert in DD can find your original partitions.