Black screen with the letter "J" after cloning a drive

RolandJS said:

when a clone from source hard-drive to target hard-drive includes the Operating System, in this case, Windows, whatever the condition and configuration the OS is in on the source hard-drive, that is the condition and configuration the OS will be in on the target hard-drive. Neither cloning or full imaging will improve a "busted" or "ruined" or "somewhat non-work,ing" Operating System.

Oh ok, actually i dont have any problems with the system i just want to have it in an external drive to use it in my main PC and later put it on a new laptop once i have a new one

Sorry for the late reply but ive tried running the cloned drive on the same pc (same result) and also in my main pc wich it is windows 7 compatible and exactly the same result

Thats what im doing but i cant take that solution on the long term i only have 1 monitor an the constant switching is very anoying

Hello to all,

That letter "J" in the upper left corner is related to the lack of letter assigned to the new cloned partitions.

To correct that and for the new cloned drive to properly boot, you have to asign the well known letters.

To do this, you have to insert a USB instalation stick (any operating system Windows 7, 8, 8.1, 10) , or a Windows instalation DVD in order to reach a command prompt screen.

Chose repair computer, and then find the command prompt section.

In the command prompt, you have to use diskpart to asign letters:

There are few comands yo have to use:

diskpart - to see the drives
list volume - to see and chose the partitions
select volume - to make changes to that particular partition
assign letter=C - to assign the corect letter to the partition

You can find a detailed way here:

https://www.howtogeek.com/197296/how...drive-letters/

After that, your new cloned SSD or HDD will corectly boot into Windows.

Best luck to all!
https://doradosystems.ro

It won't matter what type of drive it is SSD or mechanical I have tried both types when cloning and on 2 different Asus motherboards the drives boot to a J.
The only fix I found was boot to command prompt and use diskpart. The letters are usually swapped system reserve is c and main is d. You have to swap them back.
diskpart - to see the drives
list volume - to see and chose the partitions
select volume - to make changes to that particular partition
remove letter=C to remove the wrong letter C from "system reserved" partition 99-100MB
assign letter=k or whatever is available, then select volume for main partition
remove letter=d or whatever letter the main partition is (usually the largest partition)
assign letter=C
list volumes to double check that it is now correct
exit stay in command prompt and perform the following commands
enter cd C:\windows\system32 hit enter
bootrec /fixmbr hit enter
bootrec /rebuildbcd hit enter
exit
boot to windows
Hope this works for you please let me know if you have any questions.

Dear,

Could you explain to me how to do this because i have the same issue ?
How to boot to command prompt and should i put the original hdd in the laptop ?