A boot loop — the Acer logo appears, Windows starts loading, then everything restarts and does it again — is one of the most stressful Windows failures because you can’t get in to fix anything. But you don’t need to get into Windows. The recovery environment gives you every tool you need, and most boot loops are a corrupted boot record or a bad driver, both very fixable.

Work through these in order, starting with the gentlest options. If the loop began right after an update, also see automatic repair loop fixes and the HP-specific repair loop guide .

Why this happens

  • Corrupted Boot Configuration Data (BCD): The bootloader’s instructions are damaged, so Windows can’t finish starting.
  • Failed Windows update: An update that didn’t apply cleanly leaves the system half-migrated.
  • Bad driver loading at boot: A crashing storage or display driver restarts the boot process.
  • Disk errors: Bad sectors in boot-critical areas.
  • Fast Startup glitches: The hibernation-based fast boot preserving a corrupted kernel state across “restarts.”
  • Intel RST / storage driver mismatch: Acer laptops with Intel Rapid Storage need the right driver or the boot drive isn’t found.
  • Failing drive: A dying SSD/HDD that intermittently drops out during boot.

How to fix it

Work through these in order — start with Fix 1 and stop as soon as the laptop boots normally.

Fix 1: Break the loop with a hard power cycle

Clears stuck hardware states and Fast Startup’s cached boot data.

  1. Hold the power button for 10 seconds until the laptop fully shuts off.
  2. Unplug the power adapter and all USB devices.
  3. If the battery is removable, take it out; otherwise, hold the power button for 30 seconds with everything unplugged to drain residual power.
  4. Reconnect only the power adapter and try booting.
  5. If it boots, immediately disable Fast Startup: Control Panel > Power Options > Choose what the power buttons do > uncheck Turn on fast startup.

Fix 2: Enter recovery and run Startup Repair

Let Windows attempt the automatic fix first — it handles simple bootloader issues.

  1. Force recovery: power on, and when the Acer logo appears, hold the power button to shut down. Repeat twice; the third boot opens Automatic Repair.
  2. Click Advanced options > Troubleshoot > Advanced options > Startup Repair.
  3. Select your Windows installation and let it run. (For background on these recovery tools, see Microsoft’s Windows support hub .)
  4. If it succeeds, great. If it reports it couldn’t repair, continue — the manual fixes below go further.

Fix 3: Boot into Safe Mode

Safe Mode skips the drivers that are usually crashing the boot.

  1. In recovery, go to Troubleshoot > Advanced options > Startup Settings > Restart.
  2. Press 4 for Safe Mode.
  3. If Safe Mode boots, a third-party driver or startup item is the cause — continue to Fix 4.
  4. If Safe Mode also loops, skip to Fix 5 (System Restore) and Fix 6 (bootrec).

Fix 4: Remove the crashing driver from Safe Mode

In Safe Mode, eliminate the likely culprits.

  1. Open Device Manager (Win + X > Device Manager).
  2. Look for devices with yellow warning icons — update or disable them.
  3. If the loop started after a driver update, roll it back: Properties > Driver > Roll Back Driver.
  4. Open Settings > Apps > Installed apps and uninstall anything added just before the loop (especially driver updaters and new antivirus).
  5. Restart normally and test.

Fix 5: Use System Restore

Rolls back to before the loop without touching your files.

  1. In recovery: Troubleshoot > Advanced options > System Restore.
  2. Choose a restore point dated before the boot loop began.
  3. Complete the wizard and restart.
  4. If no restore points exist, continue — and enable System Protection afterward so you have them next time.

Fix 6: Rebuild the boot files with bootrec

The definitive fix for BCD corruption — the most common deep cause.

  1. In recovery, open Troubleshoot > Advanced options > Command Prompt.
  2. Run these commands in order, pressing Enter after each: bootrec /fixmbr bootrec /fixboot (if “Access denied,” see step 5) bootrec /scanos bootrec /rebuildbcd
  3. When asked to add installations, type Y.
  4. Type exit, restart, and test.
  5. If fixboot gives Access Denied: run diskpart, then list vol, identify the EFI partition (FAT32, ~100 MB), sel vol N, assign letter=Z:, exit, then bcdboot C:\Windows /s Z: /f UEFI (adjust C: if needed), and restart.

Fix 7: Check the disk and repair system files

Rules out the hardware and corruption causes.

  1. In the recovery Command Prompt, run chkdsk C: /f /r (use the correct drive letter — check with diskpart > list volume).
  2. Let the scan complete fully.
  3. Then run sfc /scannow /offbootdir=C:\ /offwindir=C:\Windows from the same prompt.
  4. Restart and test. If CHKDSK finds growing bad sectors, back up and plan a drive replacement.

Fix 8: Reset Windows (keep files) as a last resort

When nothing else breaks the loop, reinstall Windows while preserving data.

  1. In recovery: Troubleshoot > Reset this PC.
  2. Choose Keep my files.
  3. Follow the prompts — this reinstalls Windows 11, removes apps and settings, but preserves personal files.
  4. Afterward, install drivers only from your laptop maker’s official support site, and create a restore point immediately.

Closing

A Windows 11 boot loop on an Acer feels like a dead laptop, but it’s usually a corrupted bootloader or a bad driver — both fixable without losing anything. The recovery environment is your workshop: Startup Repair for the easy wins, System Restore for the quick rollbacks, and bootrec for the deep BCD repairs that actually end most loops. Work in order, don’t skip the backup if you can reach Safe Mode, and once you’re booting cleanly, disable Fast Startup and keep a restore point handy. Loops love to recur on machines where the original cause — usually a driver — was never addressed. If the loop ever returns, note what changed just before it: the pattern almost always points at the same driver or update.

Frequently asked questions

What causes a Windows 11 boot loop on Acer laptops?
The most common causes are corrupted boot configuration data (BCD), a failed Windows update, a buggy driver loading at startup, disk errors, or Fast Startup preserving a broken boot state. On Acer machines specifically, outdated BIOS firmware and Intel RST (Rapid Storage Technology) driver issues also show up regularly.
Will I lose my files fixing a boot loop?
The repairs here — Startup Repair, System Restore, SFC, and rebuilding the BCD — all preserve your files. Only ‘Reset this PC’ with ‘Remove everything’ or a clean install deletes data, and those are last resorts clearly marked as such.
How do I get into recovery mode on an Acer laptop?
Force it: power on, and as soon as the Acer logo appears, press and hold the power button until it shuts off. Do this twice; on the third boot Windows opens Automatic Repair. Alternatively, tap F2 during boot for BIOS or use Windows installation media and choose Repair your computer.
What if Startup Repair says it couldn't repair my PC?
That’s common — Startup Repair is good at simple problems but often fails on BCD corruption or driver issues. Don’t stop there: move on to System Restore, Safe Mode, and the manual bootrec commands below, which fix what Startup Repair can’t.