How do I upgrade or reinstall my 54800-series oscilloscope's operating system and scope software?

Upgrade and recovery software is available free of charge at: https://www.keysight.com/find/infiniium_software

For detailed upgrade and recovery instructions, refer to: Infiniium Upgrade and Recovery Guide

Upgrade disks will update the oscilloscope application, leaving the operating system and user files intact. Recovery disks will erase all data on the hard drive and install a fresh disk image. A system recovery is a good first step in troubleshooting any problem that you believe might be software-related.