My pc does not recognize my sansa at all whan i hook it up what do i do?

unplug it and restart the computer then once loged into windowes plug it back in.

Disconnect from pc, go into sansa menu to USB then press center. It's probably set to MDM. Scroll to MSC, press button. Reconnect to pc & it'll probably show up
Hope this help you

Sansa c200 series – Computer/OS Not Recognizing
Connect the device to the PC in MSC Mode
View/c200: Turn on then press and hold the rewind button while plugging to the PC
If that fails, unplug the Sansa from the computer. Uninstall all the Sansa software in the add/remove programs section of Control Panel. Reinstall the clean version of the software from Sandisk’s website – make sure you get the files for the c200 series. Then replug the Sansa and try again. The root of the problem is that Sansa has one set of drivers and Windows has another. If you plug the mp3 player into the computer before installing the Sansa drivers, the Windows drivers will trump the Sansa’s.
Here is a helpful link from Sandisk on the problem with extra information on Vista operating systems:
http://kb.sandisk.com/cgi-bin/sandisk_en.cfg/php/enduser/std_adp.php?p_faqid=42&p_created=1221328944&p_sid=8VPwlRmj&p_brand=sansa&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NzQsNzQmcF9wcm9kcz00JnBfY2F0cz0mcF9wdj0xLjQmcF9jdj0mcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1jMjAw&p_li=&p_topview=1

-Tha Mp3 Doctor

turn on the lock button and hold the record button and plug it in computer while you hold the button . easy as that hope it works for ya!!!!!!!!!!!!!!!!!!it worked for me i think it will workfor you

it might be the USB port. that happens. try it on a different port (if you have a laptop, test it out on a friend's computer)

type in (drive here):\MUSIC to access the music folder or ..VIDEO for video folder. Then it acts like a hard drive.

Does it show up in your windows explorer as another drive letter ?

their are over 11000 problems with this sansa 4GB player. IT is strongly recommended not to buy this ...My screen frozen, computer undection USB, songs deleted by itself, something error.and ETCCCCCCCC>.. latino, ur right, try reseetinn it , then unistall drive..might fix the problem..good luk ..

what os do you have xp or ? if its xp have your mp3 hooked up before hand and goto start then my computer and right click that then properties/harware/device manager-disk drives right click your mp3 and uninstall it.Then unhook it from your pc restart the pc and hook it back up your pc will find it again and should work from there

Try formating it from your desktop