QUICK TIP: Sometimes, when activating a pack, the game may say that the pack is made for a newer or older version of Minecraft. Your pack should have appeared in the left window, just hover over it and click on the arrow pointing to the right.zip file you downloaded in the first step to the newly opened 'resourcepacks' folder. – folder titled 'resourcepacks' will pop up On the options menu, click 'Resource Packs.'.Launch the game client through the Minecraft launcher.– if there are many different versions, just choose the one you like, is compatible with your version/edition of Minecraft, the one you think your computer can handle in terms of performance.
– general recommended step for all packs, Optifine is also needed for most shaders