Discard snapshots but keep the last VM status

[c5021081]

Hello
I created a Win XP VM. Then I installed some programs , and each time I created a new snapshot to be sure of reverting to previous state.
I finally reached a stable and definitive status, having a snapshot for each performed step: now, I would like to get rid of all the snapshots and only keep the final status on the original VDI file, so that it can be copied to several PCs.
To do this, I have discarded all the intermediate snapshots: only the last one remains, but I've the doubt that discarding this one too, I return to the original clean status of my machine loosing all the installed programs.
Can anybody suggest the safe way to obtain the goal of discarding all snapshots, keeping the last good saved configuration?

Thanks a lot,
Dino

[vbox4me2]

Backup it all and try the options