Unfortunally i deleted the gpt table on my WD 1 TB external disk. This disk was HFS or HFS+ formatted.
Don't ask me why.... it's a stupid mistake with big consequences because this was my back-up disk.
Step 1: conneted my WD 1 TB external disk to my windows 8 laptop
Step 2: open commandline
Step 3: type 'diskpart'
Step 4: type 'list disk'
Step 5: type 'Select disk 1' (is a variable)
Step 6: type 'clean'
I tried different tests with several (Windows and Apple) applications as written on several Support Comunities.
The test where performed on a USB stick to provide more damage on de WD External HD.
Who can help me to restore my WD external HD with my:
I learning guy
Retrieving data ...