Just got it and doesn't work

This drive should work with Windows 7. Contact WD support and they can send you diagnostics to run.

You may try the drive in another computer, and try restarting the 7 system.

I received one as a gift. Couldn't get it to work either. Returned to store for a replacement three times. Same problem. Store couldn't get them to work either. Suggestion: buy another brand.

I have more advice on my Tips & Tricks for fixing Sansa players, but here is a likely candidate:
Download the Sansa Recovery Tool from Sandisk's website (make sure the Sansa is not plugged into the computer yet). Once the Recovery Tool is downloaded, connect the Sansa to the computer while holding in the REC button and continue to hold it even after th player is plugged in. It should go into Recovery Mode in 10-15 seconds or so.

-Tha Mp3 Doctor

This is a typical problem. Take it back to the retailer for an exchange.

Mine froze up and I just took the battery out. Then it stopped freezing up.

hold the power button for 15 sec.
dosent work? just a guess.

Go ahead and do this, in case the DB is corrupted:
Format - Erases Everything: Connect your Sansa player to the computer and open Windows Media Player. Click on the Sync tab. Pull down the drop down menu underneath the Sync tab by moving your cursor over the Sync tab and left clicking on the little black arrow underneath the Sync tab. Highlight "Sansa 1GB" (wording may vary slightly), and then select "Format." - this should erase everything.
Firmware Upgrade- Erases Everything: Get the latest firmware upgrade from Sansa - it updates the firmware and erases every song in the player all at once. Note: this method doesn't work if already have the latest firmware. Go to this website and click "Firmware Updater" to find out: http://www.sandisk.com/Retail/DriverDownloads.aspx

you should try formating it. when you plug it into your computer... go to my computer right click on your mp3 player name under " devices with removable storage" click format. make sure nothing is checked. and then press start. wait till its done, and it should work. good luck. i can use some to..

I'm sorry to say this but you will probably end up having to return it as tons of people including me have had to do. I got one for Christmas and it worked for a day, just a day, imagine my horror when it didn't work anymore it did the same exact dumb freezing thing. Sansa has offered a solution but it's just crap. Return it to save yourself some time and frustration, think about buying another mp3 that has better feedback from buyers, like say the creative zen 1gb for 89.99 its a good alternative that I'm going to buy as a replacement for my sansa it's more money but its worth it you get what you paid for. If not the creative zen than choose carefully the mp3 your going to buy go to websites that show customer feed back. I'm sure if I'd have not wanted a sansa if I had know so many people's kept freezing. Don't be sad, happy mp3 shopping!