298 Keysight NFA Series Noise Figure Analyzers Service Guide
CPU/Disk Drive Troubleshooting
A5 Disk Drive Description
Instrument Image Recovery System
The Instrument Image Recovery System can be used to repair software errors
on the instrument's disk drive, or to restore the original factory configuration of
the system software. The Instrument Image Recovery System is stored in a
separate hidden disk drive partition. Repairing errors on the disk drive may
result in loss of data or files.
Restoring the original factory system software does not restore any of the
following items:
— Operating system configurations that were changed or updated after the
instrument was shipped from the factory. After a recovery, these
configurations will have to be redone by the end user.
— Additional software that was installed be the end user. After a recovery, that
software will need to be re-installed by the end user.
— Any updates that were made to the instrument measurement application
software.
Any user data saved to the D: partition will be retained and not altered by the
recovery process. The same is true for the instrument calibration database
since it resides on the E: partition.
To restore the C: drive using the image stored in this recovery partition see the
section titled “Disk Drive Recovery Process” on page 300.
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