After download and restart, I go to click on the desktop icon. At first, there is a blue ring, but after a short time it disappears and the program will not start. I tried to use open with in properties but it appears my win 10 will not show ‘open with’ in properties either.
I assume you have installed it, or are you trying to install it?
Can you start a LO module such a Writer from the Start Menu?
Has your anti virus blocked LO? Look in Settings and something like anti-ransomware and unblock soffice.bin.
Do any of the issues raised in General Installation Issues (Windows) sound as though they might have occurred?
The Fresh version of the LibreOffice (it is the 7.0.1 today) is published for the enthusians and volunteer testers. It is better to use the Still versions for a daily work.
The Windows10 upgrades sometimes withdraw some access rights from the user.
Check your setting in the Windows.