This guide applies to both PaintShop Pro 2023 and PaintShop Pro 2023 Ultimate. Installation steps are the same; the Ultimate edition adds a separate Bonus Pack. Each step includes one official reference.
Retrieve your installer from your Corel Account (Orders > Order Confirmation) or the purchase confirmation email, then download it to your PC. Locate the downloaded file (e.g., PSP2023_Ult_DD.exe for Ultimate), double-click to launch, and approve any User Account Control (UAC) prompts.
Follow the on-screen prompts in the setup wizard: close other apps, choose default or custom options, and proceed. When prompted, enter your serial number and user name. Choose optional settings (e.g., import previous version settings) and click Install → Finish.
Launch PaintShop Pro and sign in/activate online. If the PC is offline, use the offline activation flow (installation code → activation code) as documented.
Reference:
Corel Support — Activate the product
PaintShop Pro — Download Links
How to download and redownload your product
How to install Corel PaintShop Pro 2023 Ultimate
SKU: 7049, 7048