Windows 7 fails to assign a drive letter to a USB drive (in this case an Olympus LS-10 recorder).

I have a plug and play LS-10 erecorder. It works fine on all of my XP systems. When I pludg it into my Windows 7 64 bit system, "nothing" happens. Upon further investigation, the disk manager sees the dirves (there are 2), but no letter is assigned. I tried assigning, but I keep getting a message that asks me to refresh, restart or reboot, none of which works. I have tries to uninstall and install the devices - same result. I tried to assign the drive letters in command mode, but I get a "no volume" error.

Any suggestions?


Question Info

Last updated March 13, 2018 Views 1,475 Applies to:

Hi Bob20,

Method 1:
You can try formatting or deleting the partition and then recreating the partition from disk management. You may refer to the below link for a USB drive as well -

DISCLAIMER: Affecting system settings incorrectly can cause serious problems that may prevent your computer from booting properly or may result in loss of data. You may make a backup of your data and then proceed with the steps. Microsoft cannot guarantee that any problems resulting from the changes in the settings can be solved. Modifications of the settings are at your own risk.

Method 2:
I would suggest you to check if the device is listed as compatible in the windows 7 compatibility center link for window s7 64-bit. Refer to the below link -


If the device is not listed then we currently do not have any information from the manufacturer about the compatibility of the device with Windows 7 64-bit. You may refer to the below link for FAQ’s on compatibility and you may provide suggestion for the device to be included in the compatibility center -

Also according to the details provided at the manufacturer website the device is listed as compatible with windows 7 32-bit but not with windows 7 64-bit. Refer to the below link -


So I would suggest you to contact the manufacturer for further details. Refer to the below link to find the support-


Hope this helps.

Meghmala – Microsoft Support

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