External Hard Drive not working after installing mavericks

After installing mavericks, I hooked up my external hard drive,
and it would not show up on the computer.  Tried checking if
it showed in utilities, also a no show.
Should I uninstall the ntfs software which is a few years
old and instal a newer version?
Looking for a solution which doesn't involve reformatting my nearly full
1TB EHD, please :)

I think I have version 10.8.6 of mavericks, not 10.9.

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    Apple doesn’t routinely monitor the discussions. These are mostly user to user discussions.
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