deleting hard drive partition

[Guest]

system info: Lenovo Z61M, Core Duo CPU, 120GB HDD with hidden parition for OS
recovery, 1GB RAM upgraded to 3GB - original OS is Business Vista32 upgraded
to Ultimate Vista32

i have this Lenovo laptop that runs too slow and i upgraded the RAM from 1
GB to 3 GB but no luck. i upgraded the OS to Ultimate Vista32 - clean install
and the old Business Vista was totally wiped out. i then installed the Lenovo
drivers (previously d/loaded and saved on a CD). the upgrade impoved the
performance by an enormous speed.

THE PROBLEM: i want the HIDDEN partition (where the OS recovery is
installed) removed from the HDD because i need more storage space for my
projects. is there a program that would help me delete the hidden parition? i
do not have the floppy disk for Vista (like the one used in Win98 that is
usable for XP).

other info: i have the IBM recovery CDs just in case. but in all common
senses, i may not need this IBM recovery CDs because the laptop is running in
excellence with Ultimate Vista32 upgraded.

 

[Guest]

i tried that Disk Management - the hidden drive is grayed and not clickable -
right click yield no options as well.

maybe, i'll replace the hard drive with a larger capacity and see if it
works. thanks