Hi George Sills,
All one-time purchase versions of Office (like Office 2021 or 2024) are strictly licensed for one device only. To get it on two PCs, you would literally have to buy two separate copies at full price.
If you need Office on multiple computers, you have two practical options:
Buy two separate one-time licenses (which is very expensive).
Switch to a Microsoft 365 Subscription (Personal or Family plan). A single subscription allows you to install the full Office apps on up to 5 devices simultaneously (PCs, Macs, or tablets).
Do you strictly need the specific tools included in the "Professional" edition (like Access), or would the standard Word, Excel, and PowerPoint apps be enough for your two PCs? Let me know, and I can point you to the most cost-effective option!
Tracy.