Info Lost/Portable not recoginize

I had purchased item and was able to retrieve 85% of my photos and data that was on a portable hard drive 320gb and didnt think of loosing all data of it not responding through usb,had 5000 photos of my family and other personal data it was a night mare ,i had search web sites galore and came across a program call easeus which gave me 1 gb for free which still applies on their site,if you have more than 1 gb you would have to pay $69.95 for a full recovery of data it works and will reteive the information on e/hard drive some files on the e/hard drive are corrupt this is why usb wont reconize external,try this site www.easeus.com and download and save to desktop,then it will show you were you wish to recover data have external plugged into usb and this program will reconize external.It was worth more than $69.95 because it was a lifesaver of family memories.

Assuming you've already tried using it on another PC or Mac (as appropriate) with any needed software installed, and that didn't work, your next DIY step is to remove it from the container.

If you can remove it (most drive makers do not publish the instructions to disassemble their equipment), you can hook the drive up inside most PC (not laptop) cases directly (if they have the required IDE or SATA connection), or take it to your local PC store for a quick test.

As a last resort, you can sent it to a "disk or drive recovery" company to get some or all of your data back if it hasn't been lost to a surface defect on the disk. This is usually a fairly expensive option.