1. Click the download button above, Downloads from multimc.org for windows

2. Extract the ZIP file

3. Run and or create shortcut to MultiMC.exe

4. Choose language

5. Choose Java Version, Java 17 is required for minecraft versions 1.17+ Download Java 17 Java 8 for 1.16.5 or below Download Java 8

If you plan on using primarily 1.17+ versions of minecraft, select JAVA 17 on install, else select JAVA 8.

6. Set minimum & maximum memory allocation, for min do 2024mb-3072mb for max I recommend 4096mb AT LEAST. I personally allocate 8196mb. 

7. Click 'Profiles' at the top right, then click 'Manage Accounts'

8. Add your Microsoft account(s), then click 'Close' (Microsoft account prompt opens in browser, provided code can be copied with ctrl + c)

9. Click 'Add Instance' at the top left, Add any version, click 'ok' then 'Launch' / Double Click OR

10. Click 'Import from ZIP'

11. Paste the desired instance link from from the custom packs below, click 'ok' then 'Launch' or Double Click the instance icon.

Azul JAVA 8 (1.16.5>) Azul JAVA 17 (1.17+) 

Quick links are to the Windows x86 64-Bit download files, for other versions click here.    MultiMC recommends Azul builds of java

Immersive Portals Combo (v2.5)

https://puush.toondev.net/Pack/Immersive_Portal_Combo2.5.zip

(Server is retired)

Fabric FPS Optimizer

https://pack.toondev.net/FabricOptimized

Removal date TBD

MCSR Allowed Mods

https://pack.toondev.net/MCSRAllowedMods

For any version that is 1.16.5 or below JAVA 8 is used, meaning that special arguments can be set to make your games performance.

In my testing on Minecraft 1.8.9 with these flags, optifine and a multimc instance setting set, I was able to click launch, have the game be loaded, and then be in the server mc.hypixel.net in ~5 seconds.

To add these arguments, simply

1. Click the instance that you would like to add the arguments to

2. Under 'Launch' click 'Edit Instance'

3. Click 'Settings' then tick the box that reads 'Java arguments'

4. Copy the arguments shown here and paste in the box under 'Java arguments'

5. Launch the game!

Make sure you have the correct version of JAVA selected. Depending on what JAVA version you selected (8 or 17) you'll have to set the JAVA version manually.

1. Click the instance that you would like to change

2. Under 'Launch' click 'Edit Instance'

3. Click 'Settings' then tick the box that reads 'Java installation'

4. Click 'Auto-detect...'

5. For Minecraft 1.17+ choose JAVA 17, for Minecraft 1.16.5 and below, choose JAVA 8.

6. Launch!