I tried for a few of days to start minecraft, but it keeps on crashing.

I logged out of the account and reinstalled minecraft but that didn't solve the problem. 

Crash report:

 
21:52:38.898
Preparing to launch minecraft client for 1.16.5
21:52:38.906
Prepared asset index
21:52:41.394
Have 2641 total files to check or download
21:52:41.398
Waiting for 2641 futures
21:52:45.212
Checking installations.
21:52:45.213
Minecraft client 1.16.5 is ready to start.
21:52:45.213
Starting!
21:52:45.213
Nothing to download!
21:52:45.213
Downloading Java Runtime jre-legacy:8u51
21:52:45.822
Extracting 8 files!
21:52:46.439
Using default game log configuration client-1.12.xml (outputs XML)
21:52:46.439
Installing versions!
21:53:08.129
Process crashed with exit code -805306369