For a start I would not replace them at this stage - I think it most unlikely that two drives have failed simultaneously. Did you try removing them from device manager, restarting and letting Windows reinstall the drivers?
Have you tried writing to them? If it is just the leballing and you find you can write then not so much a problem. If you find you cannot write to them try removing them from the device list, rebooting and see if Win 7 detects and re-installs the drivers for them.
Have you tried writing to them? If it is just the leballing and you find you can write then not so much a problem. If you find you cannot write to them try removing them from the device list, rebooting and see if Win 7 detects and re-installs the drivers for them.
Having followed the instructions in the link and opened the series of sub-items in regedit you should see something like the attached in which you should see the entry for the upperfilters which you need to edit as described.
Having followed the instructions in the link and opened the series of sub-items in regedit you should see something like the attached in which you should see the entry for the upperfilters which you need to edit as described.
For a start I would not replace them at this stage - I think it most unlikely that two drives have failed simultaneously. Did you try removing them from device manager, restarting and letting Windows reinstall the drivers?