External HD telling me to format?

I haven’t used it in a while but I just went to plug it into my freshly installed Win 7 to transfer more videos too (use to play on 360/ps3) and now it prompts me to format? How do I avoid that so I don’t lose all my TV seasons on there?
Answer #1
i had to use this before, after i unplugged it (external hd) from a comp that was froze up, it didnt write some info. when plugged into another comp, over half the stuff was gone(still there, just not recognized). http://www.google.com?t=2762428&highlight=
edit, the first one had virus replies. this one??? not sure which version i used, it was from the forum, and worked well though. gl.
Answer #2
I get that in Win 7 and Vista too, if it gets to format it to NTFS then it won’t work on your PS3 anymore. I’d just ignore it.
Answer #3
you should be able to use it without reformatting.
like said jsut ignore it…
if it gives you problems try this.
turn on the external and reboot.