[quinnstar]

Hi,
I have a Acer aspire M3201 desktop computer which I brought in 2008, I did a set of recovery discs (4dvds)when the computer was new, windows systems is vista home premium,before my kids when to work on it with downloads of music files, etc, now its not performing well, I have done all the other suggestions, disc defragment, and removal of unused programs,but my computer is still slow, I have not a lot of room on my C; drive, and load of space on my D; Data drive, but when I tried to add extra volume to c drive in partition it won t work as the extend partition command is disabled in vista, I want to clear the computer completely, back to as new, and try to make c drive larger as I have a lot of operating programs on my computer and would use an external drive to back up computer and store all my music, documents, photos etc.Are the 4 disc that I made at the start the right type to use when rebooting my system again. There is no recovery program on vista home premium as was on my older computer which was XP.
Can anyone help please, very confused.