Required HDD Space?

I have an old IBM Thinkpad that has (i think) a 5GB HDD, seeing as it is partitioned; the partition that windows 98 is on is 2.2GB and the other partition is 2.7GB. I tried installing EMC when INSIDE the liveCD (the desktop install icon), but it was saying that i did not have enough space D:

The Windows98 on the laptop is "custom" for the laptop (back in the old days each laptop required their own special version), so i dont really want to format the laptop because i dont want to lose Windows on it if this laptop ends up not working as a suitable cnc controller.

the Live CD is only 700mb, so why does it need so much hdd space?

EDIT: Checked the wiki, and found that it uses up 1.7GB of hdd space. Does anyone know why it keeps saying that i dont have enough space?

Thanks,

In general, EMC2 doesn't like laptops, although I don't exactly understand why.

Suspect that the power monitoring and saving software may put too many unacceptable delays in place.

Tom