Acer Answers

Check Thunderbolt Firmware Version

Connect a Thunderbolt device to your computer. If you do not have a Thunderbolt 3 device connected, you will be unable to see the NVM firmware version.
Type Thunderbolt in the Windows search box and choose Thunderbolt Software from the search results.
Right-click the Thunderbolt icon in the system tray in the lower right corner of your screen.
Click Settings and select Details to show the firmware version.

Note: You may need to click the caret to show the Thunderbolt icon in the system tray as shown in the screenshot below.