Be sure to regularly back up your important data (including program) files in this instrument to a CD-R or other backup medium. Keysight Technologies shall not be liable for any data damages caused by improper function of this instrument.
You can make backup files on the storage of an external PC using following methods.
You can access to drive D: of the E5063A from an external PC via LAN, and copy your important data files on the drive D: to the external PC.
You can transfer your important data files on the drive D: of the E5063A to the external PC using :MMEM:TRAN command via GPIB.
Do not modify any files and folders in drives other than drive D:. Doing so will cause malfunction. Even in drive D, do not change the files and folders other than you created.