Your computer powers on, but Windows never reaches the desktop. Instead, it gets trapped in an endless “Preparing Automatic Repair” loop, crashes to a blue screen (BSOD), or freezes indefinitely on the manufacturer’s logo. Unlike laptops that have no power at all, these symptoms usually stem from Windows file corruption, incompatible drivers, or failing storage.
Quick Summary: Protect your files first. If disk failure is suspected, clone your drive before attempting automated repairs. From the Windows Recovery Environment (WinRE), try Startup Repair, Uninstall Latest Updates, and System Restore in sequence. Note any BSOD stop codes, as they pinpoint whether RAM, drivers, or storage are failing.
Diagnosing by Symptom
| Symptom | Probable Cause | First Diagnostic Step |
|---|---|---|
| Endless “Preparing Automatic Repair” | Corrupt system registry, failed update, bad sectors | Launch WinRE > Startup Repair |
| BSOD during boot with instant restart | Corrupted driver, faulty RAM, disk read error | Boot Safe Mode; record stop code |
| Freezing on ASUS / HP / Lenovo logo | Corrupt bootloader (BCD), dying SSD | Test BIOS drive visibility |
| ”No Bootable Device Found” | Storage drive disconnected, degraded, or wrong boot mode | Check UEFI/Legacy mode in BIOS |
| BitLocker Recovery screen appears | Hardware change, TPM reset, or BIOS update | Enter 48-digit key from Microsoft account |
Step-by-Step Recovery Steps
1. Trigger the Windows Recovery Environment (WinRE)
If Windows crashes during boot three consecutive times, WinRE opens automatically. If it doesn’t, power on your computer, hold the power button down for 5 seconds when the Windows logo appears to force a shutdown, and repeat this three times.
2. Run Startup Repair
In WinRE, go to: Troubleshoot > Advanced Options > Startup Repair Windows will scan system files, master boot records, and partition tables to rectify startup inconsistencies.
3. Uninstall Problematic Updates
If this error began following an automatic Windows update: Troubleshoot > Advanced Options > Uninstall Updates Choose “Uninstall latest quality update” or “Uninstall latest feature update”.
4. Restore from a Restore Point
Navigate to System Restore. Select a restore point dated before the crashes started. This replaces system registry hives and driver configurations without affecting your personal documents.
5. Boot into Safe Mode
Go to Startup Settings > Restart, then press 4 (Enable Safe Mode). If Windows loads smoothly in Safe Mode, the problem is an incompatible third-party driver or startup program rather than core hardware.
Decoding Common Blue Screen (BSOD) Stop Codes
| Stop Code | Primary Suspect | Recommended Action |
|---|---|---|
| MEMORY_MANAGEMENT | Defective or mismatched RAM | Run Windows Memory Diagnostic (mdsched.exe) |
| CRITICAL_PROCESS_DIED | Corrupt system files or dying SSD | Run sfc /scannow in recovery Command Prompt |
| INACCESSIBLE_BOOT_DEVICE | Missing storage driver, failing NVMe | Check AHCI/RAID BIOS settings; test SSD health |
| DRIVER_IRQL_NOT_LESS_OR_EQUAL | Outdated or corrupt device driver | Update network/GPU drivers in Safe Mode |
| VIDEO_TDR_FAILURE | GPU hardware defect or driver crash | Reinstall display driver with DDU utility |
| KERNEL_DATA_INPAGE_ERROR | Bad sectors on storage drive | Inspect drive SMART health immediately |
Preserving Your Files: When to Stop Home Fixes
Repeatedly running automated repair attempts on a failing hard drive or degraded SSD can permanently scramble your partition tables.
- If you hear mechanical clicking from an HDD, turn off the computer immediately.
- If you lack a recent backup, seek professional disk imaging before proceeding with formatting.
- See our guide on data recovery from an unbootable laptop for complete extraction details.
Professional Diagnostics in Antalya
At Protech Bilgisayar in Antalya, we diagnose software crashes, blue screens, and boot failures using hardware diagnostic testers. We identify whether the issue is a software glitch or an actual SSD/RAM defect. Visit our computer repair services workshop in Muratpaşa for a free initial assessment.
Frequently Asked Questions
Why is my computer stuck in "Preparing Automatic Repair"?
This boot loop usually stems from corrupted Windows update files, faulty hardware drivers, damaged BCD (Boot Configuration Data), or failing SSD/HDD sectors. Try Startup Repair, System Restore, or Uninstall Updates from the Advanced Options menu first.
What causes Blue Screen of Death (BSOD) errors?
A BSOD occurs when Windows encounters a fatal kernel error. Common triggers include corrupt GPU/chipset drivers, defective RAM sticks, failing storage drives, or thermal throttling. The stop code shown (e.g., MEMORY_MANAGEMENT or CRITICAL_PROCESS_DIED) points directly to the root cause.
How can I access Safe Mode if Windows will not boot?
If Windows fails to boot three consecutive times, it automatically launches the Windows Recovery Environment (WinRE). Navigate to Troubleshoot > Advanced Options > Startup Settings > Restart, then press 4 or F4 to enter Safe Mode.
Will reinstalling Windows (formatting) resolve the issue?
Reinstalling solves software glitches but wipes unbacked data. Furthermore, if the real cause is bad sectors on an SSD or failing RAM, formatting will fail or the crash will recur within days. Test hardware health before formatting.