Solved Error c000000005. Help please.

Our install guide doesn't tell you to turn off DEP completly http://usabattle.net/d2/join

Step 4) is what you need.
If DEP is disabled completly on your computer like in this image http://11986-presscdn-0-77.pagely.netdna-cdn.com/wp-content/uploads/2009/05/DEP-disabled.jpg then you will need to turn it on, this quick guide that google came up with should solve your issue https://appuals.com/enable-disable-data-execution-protection-in-windows-10/

Make sure you follow the install guide from our website, step by step. Run the game only through our custom launcher and it's recommended to do it in window mode rather than full screen.
Also take a look at common game errors and their fixes at http://forum.europebattle.net/threads/fix-diablo-ii-common-errors.532466/

 

Post a screenshot of your DEP, your antivirus and windows defender status. Also you haven't mentioned the moment you get this error, it's upon pressing the battlenet button or in-game?

 

I've quoted step 4) in my previous post yet according to your screenshot the DEP settings are incorrect so you need to click each executable listed in that list and remove them before proceeding to the next step then select first DEP option which is Turn on DEP for essential windows programs and services only as you are instructed to do and restart your computer.
I'm not sure why did you select `reduce color mode`in the executable properties window so uncheck that and leave it as default.

What antivirus you used to have, before uninstalling?

You haven't answered my second question:

 

You're welcome, enjoy the game.