That blue ring of death link doesn’t have much help. It amounts to a link to a linux source code for a recovery program. I’d really rather avoid trying that if possible. It says to enter manufacturing mode by pressing the center button and more recent Sandisk instructions say to hold down the record button.
In the answers link:
I downloaded the Sansa Updater and it didn’t detect the device and won’t install unless it does.
I tried the e250 firmware updater with similar result.
Tried the DeviceRecoverySetup and it failed to install with an error DPINST RESULT: [-2147483648]
I should have mentioned Vista is asking for a Tango Player driver update when I connect but I wasn’t positive it was related to the Sansa before.