What is the “upgrade version”?

This means that the OS can be upgraded (changed to a higher version) only if it is already running a Windows OS.
If your PC already has a Windows OS when you buy it, you are eligible.
In the case of a Mac, the upgrade can be applied as an OS that runs on virtual environment software or boot camp that can run on a Mac.
Downgrading the OS is also possible, but not recommended.

Counting when using virtualization.

Regarding virtualization at the client OS, up to four virtual OSEs are allowed per license per terms of the Software Assurance (SA) privilege.

How are CALs counted?

A Client Access License (CAL) is a license necessary for accessing a certain Microsoft server.
※Eligible users of the EES contract are granted the following types of CALs:

  • Windows Server CAL
  • Exchange Server Standard CAL
  • SharePoint Server Standard CAL
  • System Center Configuration Manager CML

NOTES:
For “Remote Desktop Access to Windows Server (RDS CAL)”, see eesq22.
Other licenses not listed here (such as the Exeternal Connector License) are not included in the EES contract.
CALs that are not included in the EES contract should be purchased by your organization, and you may be able to purchase CALs at a slightly lower price by informing the vendor that the University has an EES contract.

Outlook 2019 requires to input password formultiple times.

When you try to use Outlook 2019, which is included in Office 2019 with @un.tsukuba.ac.jp mail account, you may be asked for your password for multiple times.
Please refer to the following and take corrective action.
Outlook 2019、Outlook365でパスワード入力を何度も求められる(教職員専用サイト)(in japanese)
Alternatively, use Outlook 2016, which is included in Office 2016. (You may be able to avoid this by repeating the password input 10 times or more.)