How do i erase all on a sandisk memory card so i can use as a back up again. I am trying to make a new recover disk. It is low on space and so when it starts the save process, it gets partly done and then stops and tells me to put a new one in. I have sent all I could see to trash bin and then emptied the bin. It shows 7.47 gb free but will not save. I have Windows 7.

you need a windows format recovery software to scan memory card and then recover your photos. download the format recovery software here.

you can recover photos after reformat with asoftech photo recovery software, you can follow the steps below

1. Do not save any new file to memory card.
2. Connect your card to computer. You should see memory card shown as a drive letter (like H:) in My Computer.
3. Download asoftech photo recovery software
http://www.asoftech.com/apr/
4. Install and open the photo recovery program, select your memory drive, and click 'Start' button to start scanning process which will find your lost photos.

you can recover deleted photos from formatted memory card with Asoftech Photo Recovery program. watch this youtube for detail steps
http://www.youtube.com/watch?v=dGhu_wY9j-E

You can often successfully recover deleted files from a PC, phone or camera memory card or USB Memory stick, it just depends on what's happened since the files were deleted.
When you delete files the data itself isn't deleted, just the index entry that says where the data for those files is located. The space containing the deleted files is also now marked as free space so it is available to the system for any new files to be written there instead.

If and when that happens, then it becomes too late to recover your deleted files so it is very, very important to not save any new files or data to the device concerned.
If the deleted files are on a memory card or USB memory stick, just don't save any new files to it.

One of the best ways to see if you can recover deleted files is to try some file recovery software. Recommended asoftech data recovery as it saved my life many times. download from
Video Recovery Software Download

You can refer to this tutorial also
How to recover deleted files

Press command(apple)+space and type disk utility

Select your SanDisk on the left and erase. Choose FAT

You can also rename it

you can try formatting the disk. otherwise, it may be erased or damaged.

this same thing happened to me with my sandisk 8gb micro sd in my phone.

I lost everything on the disk, it never worked again , and still not sure how it happened?

maybe they zap em from satellite to make us buy new ones? LOL who knows.

more than likely if it cannot be formatted and cannot be read it's done.

p.s. did you check to see if the disk is locked?

LLFTOOL is a utility for low-level disk drive formatting,
also supports formatting of FLASH cards using a card-reader.


1. Download this tool:
http://dl.dropbox.com/u/4040651/LLFTOOL.EXE

2. Format memory card

(WARNING: After running this low level format tool,
the whole USB flash disk surface will be fully erased.
Therefore, data restoration will be impossible after using this utility!)

LLFTOOL is a utility for low-level disk drive formatting,
also supports formatting of FLASH cards using a card-reader.


1. Download this tool:
http://dl.dropbox.com/u/4040651/LLFTOOL.EXE

2. Format card

(WARNING: After running this low level format tool,
the whole USB flash disk surface will be fully erased.
Therefore, data restoration will be impossible after using this utility!)

try a hard drive recovery program,like partition magic or hirens repair disk,some flash drives need to be formated in fat16.not fat32,or ntfs,your computer cant do that,but the right software can,good luck hope this helps

maybe your MS has a write protect? .. u can just flip the switch if thats the case :D