Here's a silly problem. I have some perfectly good USB flash-card readers from Transcend. They work just great on my XP office machine, and on my home machine if I dig out my XP boot drive and boot XP. But Win7 can't use flash in this device. Disk Management shows the correct size but can't show Properties; no drive letter is assigned, and I can't see the drives. They all work just find under XP.
Anybody know a solution? I hesitate to go buy another brand of reader; USB is supposed to be plug-and-play.
It's later, and I am home. I tried the newer Transcend on my Win7 box, with the same result.
With a microSDHC card in it, Device Manager shows it as Storage Volumes - Unknown Device. Disk manager shows it as "Disk4, Removable,, 14,92 GB, Online." Any attempt to show Properties results in "The operation failed to complete because the Disk Management console view is not up-to-date. Refresh the view by using the refresh task. If the problem persists close the Disk Management consolse, then restart Disk Management or restart the computer."
And the Sony MRW-F3 does work with my cards and Win7.
Although it was advertised as working with MicroSDHC, if you try to insert one it's pretty much the same as dropping a floppy disc in a toaster. It rattles around, falls out if you turn it upside down, and doesn't do anything useful. The small print says that it requires an adapter, which is not provided. Since I've got half-a-dozen of them lying around, no problem.