VectorStar™ MS464xB Series Microwave Vector Network Analyzer Operation Manual : Overview : Operating System
 
Operating System
The VectorStar software runs on Microsoft® Windows XP, Windows 7 (32-bit), and Windows 10 IoT (32-bit).
Windows 7 only supports VectorStar software version 2.1.3 and higher.
Windows 10 IoT only supports VectorStar software version 2020.5.1 and higher.
Maintaining Operating System Integrity
The Microsoft Windows operating system on the VectorStar MS464xB Series VNA is configured for optimum performance when the instrument leaves the factory. To maintain the system’s operating integrity, follow proper Windows shutdown procedures and DO NOT modify the operating system configuration, the firewall settings, the system registry, the internal drive partitions, or the Anritsu user accounts.
Caution 
If a VectorStar VNA internal drive restore is required, contact Anritsu Customer Service.
Restoring the system software may adversely affect some user data or programs that are loaded onto the internal drive. The instrument operating system will be configured as it was on the selected restore date, including the original option configuration. Before starting the system restore procedure, back up all user data, applications, and ensure that the installation files of any additional software or instrument options are available for reinstallation.
Antivirus Protection
The VectorStar MS464xB Series VNA is tested with most antivirus software, but stability is not guaranteed with all antivirus software. Anritsu recommends connecting the instrument only to a secure network. The user assumes the responsibility to provide virus protection because this is not supplied with the instrument. Contact your network administrator for information about your network security and antivirus protection policies.
Windows Updates
Not all Microsoft updates are compatible with the VectorStar MS464xB Series VNA and, if installed, may affect the performance of the instrument.
Caution 
Changing some of the default Windows settings may cause a loss of instrument control or undesired instrument behavior. Changing the Windows Regional and Language Options settings may cause unstable front panel operation. These settings must be maintained as English (United States) as is set at the factory by default.
As such, the ability of the VNA to automatically receive and install updates has been turned off. Anritsu Company recommends not allowing automatic updates from Microsoft. Ensure that the Windows update feature of the operating system remains off. Consult Anritsu customer service for procedures on how to safeguard the instrument from undesired conditions that could result from Windows updates. Updates deemed critical are available for download from the Anritsu website.