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 functin of this instrument.
You can make backup files on the hard disk of an external PC using following methods.
You can access to drive D: of the E5061B from an external PC via LAN, and copy your important data files on the drive D: to the external PC. See Accessing Hard Disk of E5061B from External PC for details.
You can transfer your important data files on the drive D: of the E5061B 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.