A small partition on the hard drive contains a record of all software installed at the factory and shipped with this system. This includes images for the Microsoft Operating System and supplemental products. If you have a problem with the operating system or device drivers, the programs on the recovery partition can restore the PC to proper operation.
If you decide to delete all of this information and remove the Recovery Partition you will make a small amount space available for other programs. If you back up your data, and you create a set of Recovery disks before deleting the partition, you can restore the PC later.