You need at least Windows 10 (64-bit version 20H2) or later, or macOS Monterey (version 12) or later.
If you previously had Creative Cloud installed and can't download it again, leftover corrupted files might be the cause: Unable to download the Creative Cloud desktop app installer can't download creative cloud desktop app
Adobe Creative Cloud requires specific hardware and software versions to run properly. If your system is too old, the installer may fail to download or launch: You need at least Windows 10 (64-bit version
If you’re on Wi-Fi, try a wired Ethernet connection . If you’re at an office or school, a hardware firewall or proxy server might be blocking Adobe’s servers; in this case, try downloading from a home network. If you’re at an office or school, a
Check your security software's documentation to pause its protection during the download.
If Chrome or Safari is blocking the download, try using another modern browser like Firefox or Microsoft Edge .