Quick answer
Start simple: update Acrobat and restart the PC. If it still crashes, turn off hardware acceleration and update your graphics driver, then repair the installation. If it opens but crashes on certain PDFs, try turning off Protected Mode to confirm the cause. Still broken? Reset preferences or do a clean reinstall. One of these clears it in the vast majority of cases.
WHY IT HAPPENS
The app, not the PDF.
A PDF is just data — it can't crash your PC on its own. When Acrobat keeps falling over, the cause is nearly always on the app side: a build that's fallen behind on updates, a graphics driver that doesn't get on with Acrobat's hardware acceleration, a third-party add-in loading itself into Acrobat, a corrupted preferences file, or a damaged installation. The trick is to rule these out one at a time so you fix the real cause instead of guessing.
THE FIX
Work through these in order.
- Update Acrobat and restartOpen Acrobat and choose Help → Check for updates, install everything offered, then restart the computer (not just the app). A surprising number of crashes are fixed by getting onto the current build, because Adobe ships stability fixes constantly.
- Turn off hardware accelerationGo to Menu (or Edit) → Preferences → Page Display and untick anything about using graphics acceleration or fast rendering. Acrobat leans on your graphics card to draw pages, and an old or mismatched graphics driver is a classic cause of crashing. While you're at it, update the graphics driver from the vendor's site (Intel, NVIDIA or AMD).
- Repair the installationIn Acrobat, choose Help → Repair installation (or repair it from Windows Settings → Apps → Installed apps). This rebuilds damaged program files without touching your documents or licence, and it's the single most effective fix for an app that won't open.
- Test with Protected Mode offIf Acrobat opens but crashes on particular PDFs, go to Preferences → Security (Enhanced) and untick Enable Protected Mode at startup, then restart Acrobat. If the crash stops, the sandbox was the culprit — treat this as a diagnosis, not a permanent setting. Protected Mode is a real security control, so aim to fix the underlying clash (usually a driver or repair) and switch it back on.
- Rule out a conflicting add-inThird-party plug-ins — from PDF tools, e-signature apps or antivirus — can load into Acrobat and bring it down. Temporarily disable browser and Office PDF add-ins, and if a security product is involved, briefly pause it (or add Acrobat as an exception) to see if launching succeeds. If it does, the add-in or antivirus rule is your answer.
- Reset Acrobat preferencesA corrupted preferences file makes Acrobat crash on startup. With Acrobat closed, rename its preferences folder so Acrobat builds a fresh one next launch — on Windows that folder lives under %appdata%\Adobe\Acrobat (rename the version-numbered folder inside, e.g. add ".old"). Acrobat recreates default settings automatically.
- Reinstall as a last resortIf nothing above sticks, uninstall Acrobat from Settings → Apps → Installed apps, run Adobe's cleaner tool to remove leftovers, restart, and reinstall the current version. Your subscription re-activates when you sign in with the same Adobe account.
Crashing on more than one machine? If Acrobat is falling over across several PCs at once, it's not one person's install — it's usually a bad Adobe update, a driver rollout or a group policy that landed poorly. That's the point to hand it to your IT provider so it's fixed at the source once, rather than repeating these steps on every desk.
