Helldivers 2 Won't Launch After the EAC Switch: Windows/Steam Steps

Confirm the exact case and platform first

This sequence is for the launch failure described by Arrowhead after the switch to EAC, on Windows through Steam. It is not a general recipe for every crash, a console workflow or proof that anti-cheat is the cause.

The support article warns that removing a mod manager may leave its files behind, and explicitly includes ReShade and OptiScaler. Do not start by deleting arbitrary folders or disabling system security.

References: Arrowhead — crash after the switch to Easy Anti-Cheat · Arrowhead — HELLDIVERS 2 Known Issues

Arrowhead's first pass, with a local-settings precaution

The listed AppData cleanup may reset local configuration. If you want to retain those settings, copy the Helldivers2 folder somewhere outside AppData before following Arrowhead's instruction to clear its contents. This optional precaution is an editorial safety note; it is not a claim that the support article provides a recovery guarantee.

1. If HELLDIVERS 2 mods were ever installed, purge them and inspect the game bin folder for the exact leftover DLL filenames Arrowhead names, including ReShade/OptiScaler files. Do not remove unrelated files.
2. Open %appdata%\Arrowhead\ and clear the Helldivers2 folder as Arrowhead directs; keep a separate copy first if you may want local settings back.
3. From Steam's game local files, open EasyAntiCheat and run GGuninst.exe. Remove the named GameGuard folder only if the support article's condition applies.
4. Install pending Windows and driver updates. Choose Windows Restart rather than Shut down, as the support article specifies.
5. After restart, in Steam open Properties → Installed Files → Verify integrity of game files and wait for completion.
6. Try a single launch. If it still fails, record the result and move to the separate second pass; do not loop destructive cleanup without evidence.

References: Arrowhead — crash after the switch to Easy Anti-Cheat

Second pass is conditional, not the starting point

Only after the first pass fails, Arrowhead asks players to delete the game's bin and data folders and run Steam file verification again. Those are installed-game folders and Steam will reacquire files; do not substitute a whole-library wipe, delete your account data or assume this instruction applies outside Steam.

Arrowhead also says some players report success by launching Steam as administrator. The source presents this as something heard from users, not a guaranteed or universal fix.

1. Open Steam → HELLDIVERS 2 → Manage → Browse local files.
2. Delete only the named bin and data folders if you have reached this second pass and are comfortable with the reinstall/re-download involved.
3. Return to Steam → Properties → Installed Files → Verify integrity; allow it to finish before another launch attempt.
4. If the crash handler requests a memory dump and the problem persists, contact Arrowhead Player Support and attach the requested dump through its ticket workflow.

References: Arrowhead — crash after the switch to Easy Anti-Cheat

Use the checklist as a record, not as an automated repair

The browser-local checklist below uses two selected answers to display the published order. It does not inspect files, remove mods, touch AppData, run Steam, update drivers, create a dump, contact support or store your selections after reload.

References: Arrowhead — crash after the switch to Easy Anti-Cheat

Before you play

• Confirmed this is Windows/Steam and the EAC-switch launch scenario.
• Checked for leftover mod, ReShade or OptiScaler files before game-folder cleanup.
• Preserved local settings if I want them before clearing the named AppData folder.
• Restarted Windows, then verified files through Steam before the second pass.
• Used only the named bin/data folders on the conditional second pass.

Frequently asked questions

Sources & revision notes

Editorial revision: November 6, 2026; not a gameplay test date. The reference notes identify source limits and version differences.

1. Arrowhead — crash after the switch to Easy Anti-Cheat (Official)

   Windows/Steam troubleshooting article updated November 5, 2026, checked November 6. It provides ordered first-pass cleanup, restart and Steam integrity verification, followed only if needed by deleting named game folders and verifying again. No GamerWin machine was modified or launch test performed.

2. Arrowhead — General Tech troubleshooting tips (Official)

   Arrowhead support article updated October 27, 2026, checked November 6. General PC advice includes minimum requirements, drivers, Steam integrity, AppData and reinstall. Use the game-specific EAC article for its ordered scenario; neither article proves a given fix will work on a particular PC.

3. Arrowhead — Helldivers 2 cross-play and cross-progression FAQ (Official)

   Arrowhead Player Support FAQ updated November 3, 2026, checked November 6. It says cross-play exists across PC, PlayStation and Xbox, but cross-buy and cross-save/progression do not; linking Steam/PSN does not copy data. Feature statements do not test a current lobby.

4. Arrowhead — HELLDIVERS 2 Known Issues (Official)

   Arrowhead support list, updated November 5, 2026 and checked November 6. It specifically lists Xbox clients immediately disconnecting to the ship after joining a PC host. The list is confirmed-but-not-exhaustive; separately notes most ongoing crash, performance and connectivity problems may be absent.