cruzer blade malfunctioning on my PC, and my PC only

[ed_p]

See if you are running any of the apps shown here:  They are known to cause problems.

http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/sandisk-cruzeredge-32g-shows-but-no-size-or-volume-not-solved/m-p/294554#M5009

They are known to cause problems with Cruzers.