: Press Win + R , type winver , and press Enter to check your current OS build number. Important Compatibility Notes

Press the on your keyboard to open the Run dialog box. Type winver into the box and press Enter .

: Your Windows is fully updated, but the Photoshop installer is incorrectly running in compatibility mode for an older operating system.

Solution 2: Update Windows 10 Using the Official Update Assistant

If your (e.g., 1507), you will need to update. However, to run modern versions of Photoshop, you ideally need a much newer version like 22H2.

Q: How do I update to Windows 10 Anniversary Update version 1607? A: Go to the Settings app, click on "Update & Security", click on "Windows Update", and click on "Check for updates".

Once your Windows operating system has successfully updated past version 1607, the Creative Cloud desktop application might still display the error due to cached system data. To clear this cache: Close the Adobe Creative Cloud desktop app.

There is a specific, little-known knowledge base article (Adobe KB220415, now deleted) that explained the technical link:

Windows 10 Update Assistant: If your built-in updater is stuck, visit the official Microsoft software download page. Click "Update Now" to download the Update Assistant tool. This tool bypasses many common update errors and forces the OS to the latest version.

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To determine if your Windows installation meets the requirements for Adobe Photoshop, follow these steps:

If you are already on a version higher than 1607 but still see the error: Photoshop 2020 how to install/update - Adobe Community

Released in August 2016, the Windows 10 Anniversary Update (build 14393) wasn't just another bug fix. It was a tectonic shift for developers. Microsoft introduced the and, more critically, overhauled the Windows Graphics Device Interface (GDI) .

To prevent future installation errors, ensure your system meets the baseline hardware and software requirements for modern Adobe Photoshop versions: