Notebook HD used in PC

[miko11]

i have been using a notebook HDD in my PC as a spare and i want to format and install a second OS on the system
The HDD has an area on it called "save to Disk"
Ive never bothered to find out what it does , but am now wondering if i can delete this part and format the whole drive
Details of disk -
Partition Information for Disk 1: 5,726.3 Megabytes
Volume PartType Status Size MB PartSect # StartSect TotalSects
===============================================
E: NTFS Pri,Boot 5,647.8 0 0 63 11,566,737
SaveToDisk Pri 78.4 0 1 11,566,800 160,650
===============================================
any help appreciated
miko