Here are some instuction from the website
4. How to recover lost or deleted partition?
MBR And Partition Table Error:
SYMPTOMS:
- When we try to boot after hardware testing procedures, we see just blank screen without any messages
- Not found any [active partition] in Hard Disk
-
DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER-
Invalid partition table
- 'Invalid Drive Specification' messages
- Partition deleted by FDISK or PQMAGIC
Please run Partition Table Doctor and select "Rebuild Partition Table" on menu
"Operation". There are two modes of searching process: the "Auto" mode and "Interactive" mode. The
Auto mode can automatically save each partition found without any process control. This mode process is applied in most situations. While the
Interactive mode allows you to select each partition found by Partition Table Doctor. When errors occur in rebuilding the partition table in Auto mode, you can switch to the Interactive mode. Searched partitions will be displayed on screen in time sequence. You can search repeatedly till the partitions you need has been found, and then save the results by pressing the "Ctrl+S" key or selecting "Save" on the menu "General".
For more detail:
Rebuild Partition Table.
6. After saving, please reboot the computer and backup all desired files. If you are not satisfied with the results of the repair after restarting the computer, click the "Undo Changes" on menu "General" immediately.
7.After copying all desired files, shut down the computer, remove the bad drive, put the bad drive in a safe place.
If there is not any mechanical problem on your drive, you can install Partition Table Doctor on the bad drive or use emergency floppy disk or bootable CD of Partition Table Doctor to recover partitions. You may go to step 4, 5, 6 directly. However, we recommend that you follow our steps to recover partition and backup data.
We also recommend that you build a brand new system now if your bad drive has been severely corrupted. Use another device other than the bad one. Install the operating system, then install the programs from their installation CD-ROMS. Finally you can import the recovered data to the new drive.
Verify that you have got back all the data you need. Do not recycle the bad drive unless you are absolutely sure about all wanted data is in place. It is a good idea to wait for 4 weeks before re-using the bad drive. If the bad drive has any mechanical problem you definitely must not use it again.
If you notice that there is any mechanical problem on the drive such as bad sectors and unusual noises, you need immediately stop the recovery and make a drive image first (You can use our Free Sector by Sector Backup software - EaseUs Disk Copy). When it is successfully created, you can recover from this drive image as the same as recover from the original drive. A mechanically damaged drive can fail entirely at any moment. It must be your primary goal to fetch all the raw data from such a drive as soon as possible. Making an image also reduces the drive load because each sector is read only once. Professional Data Recovery companies always make an image of the drive before trying to retrieve any file.
If your operational process differs from those above, please always make sure that you:
never install Partition Table Doctor on the mechanically bad drive,
never use the virus-infected drive as the boot-up system drive ©,
never have temporary files and folders copied on the bad drive,
never copy the recovered files to the bad drive,
make an image first if the bad drive has mechanical problems.
Note: Occasionally, if you could not get data back by Partition Table Doctor, we recommend that you can use professional data recovery software, such as Data Recovery Wizard to recover files. Our lab will provide you with the service within 24