I have a SSD with Windows 7 64 bit on it and a 1TB storage drive with 3 partitions.
I had installed XP on partiton D with games on E and files on F.
I formatted the D partition and wanted to add that space to partition E or F but when I try to delete partition D I get a message that this partition is active and deleting it causes all partitions to become unreadable
(E and F are not active)
What does an active partition mean and what program (free?) can I use to merge D with E or F without losing all the data?
I had installed XP on partiton D with games on E and files on F.
I formatted the D partition and wanted to add that space to partition E or F but when I try to delete partition D I get a message that this partition is active and deleting it causes all partitions to become unreadable

What does an active partition mean and what program (free?) can I use to merge D with E or F without losing all the data?