HP Compaq Presario,Presario 5116 Quick Start Manual page 89

If the hard drive partition
does not have enough space
to store the User Backup,
you may be prompted to
increase the size of this
partition.
Caution: Increasing the size of your SystemSave partition may take
several minutes to complete. Do not press any keys or turn off your
computer while increasing the size of the partition. Failure to
observe this caution can result in damage or permanent loss of
important files.
A message is displayed asking you if you want to resize your
SystemSave partition. The Resize SystemSave option is the
default option. To increase the size of the partition, click the
OK button. Be aware that the size of the C drive decreases as
the size of the SystemSave partition increases.
The computer automatically begins resizing the partition and
then completes User Backup.