If you see the error message it is because modern versions of Photoshop (starting with CC 2018 v19.1) dropped support for older Windows builds that Microsoft no longer services. Key Insights for Users
So (2020–2025) needs 1607.
Press Win + R , type winver , and hit Enter. If your version is lower than 1607, you must update. If you see the error message it is
Once you successfully install Windows 10 Version 1607 or higher: If you see the error message it is