Question : Drive letter assignment wrong on install.

When i do a fresh install of windows onto a computer that has a 5in1/6in1 media card reader, my root windows drive always ends up with a drive letter asigned at the end of the ladder. I.E. instead of C:\ I end up with F:\ for the windows root.  Ive run in to this problem twice now. Im unable to just change it using the disk managment mmc, because its the windows drive. Ive also tried changing it (after install) in HKLM\System\MountedDevices, but that was a mistake.  What can i do to make this right?

Answer : Drive letter assignment wrong on install.

Disconnect the reader until after the install