Use the launcher that manages the game’s installation, then run its built-in verify or repair tool. Steam calls it “Verify integrity of game files,” Epic Games Launcher calls it “Verify,” the EA app calls it “Repair,” and Battle.net calls it “Scan and Repair.” These tools check or repair local game files; they do not establish that a separate DRM activation, account, or service problem is fixed.
Before you scan: identify the launcher and check for updates
A game bought from one storefront may still be serviced by a publisher’s launcher. First identify which app owns the installed copy. Epic says that some games requiring another launcher must be updated and verified in that game’s native launcher, including titles using Ubisoft Connect or Origin: Epic’s native-launcher guidance. Ubisoft says games bought through Epic Games or Steam can also be verified directly through those storefront launchers: Ubisoft’s guidance on verifying files.
Install any pending game update before scanning. Blizzard’s support guidance specifically recommends checking for updates first, then running repair if the game is current and the problem continues. Its instructions are published in Spanish; the labels below are English translations of the documented workflow: Blizzard Support: Reparación de Battle.net juegos.
Verify or repair files in your launcher
Steam
- Open Steam and select Library.
- Right-click the game and choose Properties.
- Select Installed Files, then choose Verify integrity of game files.
- Let the check finish before launching the game again.
Steam describes this feature as a way to check that game files are installed correctly when content is missing or the game crashes. Steam also advises against running verification while doing other system-intensive work, such as defragmenting a drive or scanning for viruses. See Steam Support: Verify Integrity of Game Files.
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One-click scans. No signup required.
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Epic Games Launcher
- Open Epic Games Launcher and select Library.
- Find the game and click the three dots on its row.
- Select Manage, then click Verify.
- Wait for validation to finish; Epic notes that it can take a while.
Epic says the check looks for files that are damaged or corrupted and changes or repairs files that differ. It also says saved data will not be affected. See Epic Games Store Support: How do I verify game files in the Epic Games Launcher?
Ubisoft Connect PC
Ubisoft’s support page confirms that Ubisoft Connect PC can verify files and restore missing or corrupted ones, but its current menu labels and click path are not established in the available page content. Open Ubisoft’s official verification instructions for the current steps. If you purchased the Ubisoft game through Epic Games or Steam, Ubisoft says you can verify it directly in that storefront launcher.
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EA app
- Open the EA app and select Library.
- Find the game and select its Manage icon.
- Choose Repair and allow the process to finish.
EA lists Repair among troubleshooting steps for a game that crashes or freezes; it is not proof that damaged files caused the problem. See EA Help: Troubleshoot PC, PlayStation, and Xbox crashing or freezing.
Battle.net
- Check for and install any available game update.
- If the game is up to date and the issue persists, select the gear icon next to Play.
- Choose Scan and Repair, select Start Scan, and wait for repair to finish.
These steps follow Blizzard’s official Spanish-language support guidance; English labels here translate its documented workflow. See Blizzard Support.
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If the game still will not launch
Try launching again after the scan completes. Verification is for installed game files: a successful check does not show that an account entitlement, DRM activation, or online service is working. If the game still reports an authentication or activation error, use the relevant publisher’s official account or activation support; for a service-related error, check that publisher’s service-status guidance.
Stick to the launcher’s built-in repair process rather than deleting files manually or downloading replacement executables from third-party sites. The documented workflows above do not call for either step.
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