Guías

Arregla una cosa sin tocar el resto

Alcanced troubleshooting for Prism Launcher — SmartScreen, VC++ runtimes, per-instance Java, MultiMC import, mod failures, and antivirus noise. Each fix stays inside its lane.

LauncherOK

JavaCONTROLAR

AccountOK

Mods2 ISSUES

ImportMultiMC

SmartScreen MSVCP140 Java Import Mods Antivirus

Windows

SmartScreen bloquea el instalador

Error: Windows protected your PC

Confirmar la fuente

Descarga desde la página oficial de releases de Prism Launcher, no desde un mirror reempaquetado.

Open More info

Expande el diálogo de SmartScreen para que aparezca Ejecutar de todos modos.

Continue only if trusted

Choose Run anyway, then finish setup into a clean install folder.

Fixed: Reputation warnings fade as more users run the same unsigned build.

Windows

Missing MSVCP140.dll

Error: The program can't start because MSVCP140.dll is missing

Install VC++ Redistributable

Instala el último Microsoft Visual C++ Redistributable (x64) para tu versión de Windows.

Reinicie si se le solicita

Algunos sistemas necesitan reiniciar antes de que se actualice la ruta del DLL.

Lanzar de nuevo

Inicia Prism Launcher desde el menú Inicio o el acceso directo del escritorio.

Check: Usa el redistributable oficial de Microsoft, no un DLL de terceros.

Runtime

Elija el Java correcto por instancia

Open instance settings

Selecciona la instancia y abre Ajustes: los cambios solo aplican dentro de ese límite.

Assign a Java path

Apunta a un JDK o JRE que coincida con la versión de Minecraft (a menudo Java 17 o 21 en packs modernos).

Set memory

Raise max memory for large packs, but leave headroom for the OS — per instance, not globally.

Fixed: A wrong global Java is a common cause of crash loops. Alcanced Java fixes the loop without touching other setups.

Migration

Import from MultiMC

Export or copy the instance

Mantenga intacta la carpeta de la instancia MultiMC antes de moverla.

Use Prism import

Choose the MultiMC / Prism-compatible import path in Add instance.

Verify Java and accounts

Re-check loader version, Java path, and Microsoft account after import.

Check: Worlds and mods stay under the new instance directory — boundaries preserved.

Gameplay

Mods not loading

Error: Game starts vanilla or crashes during mod init

Confirm loader match

Forge mods need Forge; Fabric mods need Fabric. Mixed jars fail quietly or loudly.

Match Minecraft version

A 1.20.1 mod will not run on a 1.21 instance without a compatible build.

leer el registro

Open the instance log and remove the first missing dependency or bad jar.

Fixed: Clean packs from Modrinth or CurseForge reduce version drift inside one instance wall.

Security tooling

Antivirus quarantines the binary

Restore from quarantine

If your AV removed Prism.exe, restore it from the quarantine list.

Add a narrow exclusion

Excluya sólo la carpeta de instalación de Prism en la que confíe, no una unidad completa.

Re-verify checksums

Compare hashes from the release notes before you keep the exclusion.

Check: Heuristic engines sometimes flag game launchers. Source review lives on the Trust page.

¿Sigues bloqueado?

Browse the FAQ for short answers, or review Trust for license and source transparency.

Open FAQ Descargar de nuevo