Optifine Minecraft problem?

Ca
- in Launchers
1

I have a problem with Optifine. I just recently bought Minecraft and wanted to install Optifine. I also installed Java for this. But when I downloaded Optifine and wanted to open it, the window briefly opened for me and then disappeared again. I've tried everything: uninstalled and reinstalled java; Often downloaded Optifine, watched thousands of videos. Then I discovered this video:

I did everything as explained in this video. But when I went to the Minecraft Launcher and wanted to select "Optifine 1.16.5-OptiFine_HD_U_G7" instead of "Latest full version 1.16.5", I discovered a call sign on the logo and this text was there: "This installation has been modified and supported may not have the latest security features for gamers. " When I got into the game with that, there weren't any changes.

I didn't know how to do it all back (the steps from the video) so I left it that way.

A few days ago, however, I started to be interested in Optifine again and how I could regulate it now and came across this video: I did everything like in the video and it finally worked! I was finally able to really install Optifine! But when I went back into the Minecraft Launcher, the call mark was still there and the same text is still displayed! So I can't use Optifine at all!

Does anyone have a solution for me? I would be very, very happy to hear from you!

Fl
-1

"This installation has been modified and may not support the latest security features for gamers."

You can just ignore that, it doesn't matter