Problem Description:
reinstall the system partition merge is because when you reinstall the system, choose the wrong option causes the entire hard drive as the C drive to install, naturally, only one dish after Bahrain. Want to recover files lost partition, you need to pay attention, do not go now the C drive into a new file (because now stored files may overwrite the original file DEF disk). Remove the hard disk can be linked to another computer when the sub-access disk or a removable hard disk, the hard disk to restore the data to the mobile. Specific recovery methods see below for more. 
Tools / Software: Ultimate data recovery software
Step 1: Download and unzip program to open first, simply double-click the disk needs to restore 
Step 2: wait for the scan to complete the program probably take a few minutes to half an hour. 
Step 3: Once you find software data, the software will find the disk listed. 
Step 4: Select all the files you need to recover, right click and select "Copy selected files", the file copy software will tick out. 
Step 5: The final step will simply wait for data COPY program can be completed. 
Note 1: reinstall the system recovery partition merge out of the data needs to be stored temporarily to the other tray.
Note 2: If you want to restore the system partition to reinstall the merger should be noted that, before the data recovery, not to the C drive into a new file.