I have been trying use Windows Update on Tiny10 version 2303 but keep getting "There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help: (0x800f081f)" Currently I have tried "sfc /scannow" but that has not worked I have tried "DISM /Online /Cleanup-Image /RestoreHealth" and this has also failed.
You're using a by-design-crippled "os". You can't expect to bring back features which were more or less permanently ripped out. Just get a proper windows 10 iso, remove the apps, remove Defender if you like, and you're set.