solved ;D;D

in the end it was easier than I thought, this was the process:

• faulty 640GB drive in the laptop

• new 1TB external drive connected via usb

• HD Clone Free Edition 4.3 software + HDClone_4.3_Manual (English) + Cloning Manual with HDClone 3.6 Professional Edition (Spanish), installed on the laptop

• from Windows 7, open the program and make a "disk-to-disk" copy (sector by sector). the process is slow but there were no problems

• when the process was finished, turn off and unplug the laptop and change the disks

• turn on the laptop, wait for W7 to recognize the new disk and restart

• create a new partition with the unused space and done, new disk with all data and programs

thanks to everyone for the help :love:

now I would like to know if I can analyze the bad disk and make a partition with the bad sectors to use it as an auxiliary external drive