Apple no longer distributes the Apple Software Update utility as a standalone installer. Instead, you acquire it by downloading the 64-bit versions of major Apple desktop applications.
: Select the official app published by Apple Inc. Apple no longer distributes the Apple Software Update
If you installed the "old-school" version of iTunes (using an .exe file), you already have the Apple Software Update tool hidden in your taskbar search. Alex’s Step-by-Step Recovery Plan If you installed the "old-school" version of iTunes
: Once installed, launch the app and sign in with your Apple ID to start using it. Use these quick steps to resolve the issue
Sometimes Apple updates fail to download or throw errors on Windows 10. Use these quick steps to resolve the issue. "Apple Software Update has stopped working"
If you're having trouble with a specific Apple app, let me know: isn't updating (iTunes, iCloud, etc.)? Are you getting a specific error message ? Apple Software Update for PC
: Ensure that SoftwareUpdate.exe has permission to pass through Windows Defender Firewall.