Software for iPadOS 15.0 keeps getting the error that it is corrupted during download

If your iPad is capable of being updated to a more recent version of iOS/iPadOS than is currently installed, these support pages outline both the available methods by which the update can be performed - and troubleshooting should you experience difficulties:

Update your iPhone, iPad or iPod touch – Apple Support

If you can't update or restore your iPhone, iPad or iPod touch – Apple Support

If your iPhone, iPad or iPod touch won’t update - Apple Support

iOS update and restore errors – Apple Support

Be aware that while an iPad may be capable of update, it may be too far behind the current version to be updated directly from iPad settings. In such circumstances you will likely need to use a computer to perform the update. You will need access to either a PC (with iTunes installed) or a Mac (with iTunes or Finder - as appropriate for the installed version of MacOS). Ensure that your installed version of iTunes has been updated to the most recent version; the essential device drivers are included.

Download and use iTunes for Windows – Apple Support

Update to the latest version of iTunes – Apple Support

Update software on iPhone, iPad or iPod touch in iTunes on PC - Apple Support

If you have a beta profile installed, ensure this has been removed from your iPad - as, otherwise, installation of production software updates may be inhibited. This support page provides the necessary information to remove the beta from your iPad:

How to uninstall iOS beta software - Apple Support

You should note that for your iPad to install an available update, its battery must be charged to at least 50% capacity - and/or be connected to its Power Adapter. Similarly, the iPad can only be updated over a standard WiFi connection - or be updated by a PC or Mac using iTunes or Finder - over a USB connection.

Lhowe wrote:

Software for iPadOS 15.0 keeps getting the error that it is corrupted

iPadOS 15.0 has been obsolete for many months, and not valid for installation.

The current iPadOS version is 15.5. Download and install it.

For whatever reason when I posted The original question the system would not allow me to type in 15.5. I probably should have put 15.4. It will not allow me to put in the 15.5 update. It shows as corrupted when I download the latest update. This iPad has had every update when it is allowed. This most recent update shows it cannot be downloaded or installed over Wi-Fi or when it’s attached to the Mac. I am assuming the next option is to wipe the iPad and start fresh.

If your iPhone, iPad, or iPod touch won't update - Apple Support