Sony PC Companion 2.1 Download (Free) - PCCompanion.exe
Xperia Companion | Sony USA
Android 12 Sony Xperia 10 III. I finally got the update I had to use PC Companion software repair to push the update. Dont know why it didn't OTA. : r/SonyXperia
Xperia Companion - Download
Install Sony PC Companion on Windows | Azuharu92
Xperia Companion – Sony's new PC software to manage your Xperia device | Xperia Blog
Update device with Sony Xperia Companion (PC required)
Download Sony PC Companion for Windows XP (32/64 bit) in English