You only need to rescan the full blockchain until the 13th of October. Best is to download it: https://mega.nz/#!P8BhCZ4I!NZHkhUEbrgVTNRI1QXhDJI6ly7z1Fv2nFgrpQM1UWDQ

Replace the folders and rescan.

For the last 3 days I have been trying to sync the blockchain on 0.9.3c so that I can move BTS
from 0.8.0 to 2.0. Having spent hrs watching it crash and stall, coaxing it along it finally passed 50%
and now is GOING BACKWARDS (syncing blocks further back in time).
Can anyone give me some advice or should I just kiss my BTS goodbye?
Thanks.