The SrtTrail.txt loop is one of Windows’ most maddening failures: your laptop boots, decides something is wrong, launches Startup Repair, fails, shows you a log file path, and offers to restart — which starts the whole miserable cycle again. You’re not getting into Windows until you break the loop manually.

The good news is that the underlying problems are well understood — corrupt boot records, damaged system files, disk errors — and the recovery environment gives you every tool needed to fix them. Work through these in order.

Why this happens

  • Corrupt BCD (Boot Configuration Data) store. The bootloader’s database is damaged, so Windows can’t find or start the OS.
  • Damaged boot sector or EFI partition. Corruption in the code that hands off to Windows.
  • Corrupt system files from a bad update or improper shutdown. Critical boot files damaged beyond what Startup Repair can replace.
  • Disk errors in boot-critical areas. Bad sectors landing exactly where the bootloader or kernel lives.
  • A failing drive. When the boot area itself is on dying storage, every repair attempt fails the same way.
  • Recent hardware changes. A new SSD or changed BIOS boot mode (UEFI vs Legacy) invalidating the old boot configuration.
  • Malware damage to boot components. Less common now with Secure Boot, but rootkits historically targeted exactly these files.

How to fix it

Do these from the Windows Recovery Environment. Get there via Advanced options > Troubleshoot > Advanced options > Command Prompt.

Fix 1: Run Startup Repair one final time, properly

Give the automatic tool one last clean shot before going manual.

  1. From the recovery screen, choose Advanced options > Troubleshoot > Advanced options > Startup Repair.
  2. Let it run to completion without interrupting it — it can take 15+ minutes.
  3. If it fails again, don’t retry it. Move to Fix 2. Repeated automatic attempts never succeed where the first two failed.

Fix 2: Rebuild the BCD and boot files

This fixes the majority of SrtTrail.txt loops.

  1. Open Command Prompt from the recovery Advanced options.
  2. Run these commands one at a time: bootrec /fixmbr bootrec /fixboot (if access is denied, see Fix 3 first) bootrec /scanos bootrec /rebuildbcd
  3. When prompted to add installations, type Y for each.
  4. Type exit, choose Continue to restart, and see if Windows boots.

Fix 3: Repair the EFI partition (for UEFI systems)

If fixboot gives “Access is denied,” the EFI partition needs manual repair.

  1. In the recovery Command Prompt, run diskpart, then list vol.
  2. Identify the FAT32 partition labeled EFI (usually 100–500MB). Note its volume number, e.g., volume 2.
  3. Run: select vol 2 assign letter=Z: exit
  4. Then run bcdboot C:\Windows /s Z: /f UEFI (replace C: with your Windows drive letter if different — check with diskpart > list vol).
  5. Exit and restart. This rebuilds the entire EFI boot environment from your Windows installation.

Fix 4: Run CHKDSK on the system drive

Rule out disk errors in the boot area.

  1. In the recovery Command Prompt, first confirm your Windows drive letter — in recovery it’s often D:, not C:. Check with diskpart, list vol, exit.
  2. Run chkdsk D: /f /r (using the correct letter).
  3. Let the full scan complete. If it finds and repairs bad sectors in boot areas, retry booting.
  4. Growing bad-sector counts across runs point to a failing drive — back up via the recovery prompt (xcopy or robocopy to USB) and plan a replacement.

Fix 5: Run SFC and DISM offline

Repair corrupted system files from outside the broken Windows.

  1. In the recovery Command Prompt, run: sfc /scannow /offbootdir=D:\ /offwindir=D:\Windows (adjust D: to your Windows drive).
  2. Then run: DISM /Image:D:\ /Cleanup-Image /RestoreHealth (this needs no internet in recent Windows versions for basic repairs).
  3. Restart and test. Offline SFC catches corruption that online SFC can’t touch because the files aren’t in use.

Fix 6: Disable automatic restart and check the real error

Sometimes SrtTrail.txt is masking a different stop code.

  1. From Advanced options > Troubleshoot > Advanced options > Startup Settings, choose Restart, then press 9 or F9 to Disable automatic restart after failure.
  2. The next crash shows the actual blue screen and stop code instead of diving into repair.
  3. Note the code and search our guides for it — fixing the real error (often a driver or 0x7B storage error) breaks the loop permanently.

Fix 7: System Restore from recovery

If the loop started after a specific change, roll it back.

  1. Go to Advanced options > Troubleshoot > Advanced options > System Restore.
  2. Pick a restore point dated before the loop began.
  3. Let it complete and restart. System Restore doesn’t touch personal files — it reverses system, driver, and registry changes.

Fix 8: Reset with file preservation, or clean install

When repairs fail, the installation itself is too damaged.

  1. Go to Troubleshoot > Reset this PC > Keep my files. This reinstalls Windows while preserving personal data (reinstall apps afterward).
  2. If the reset also fails — a sign of drive failure or deep corruption — back up files via the recovery Command Prompt, then clean-install from a USB created with the Microsoft software download page media creation tool.
  3. After reinstalling, check drive health immediately; a fresh install on a dying drive just delays the next loop.

For update-triggered variants, see our SrtTrail.txt after Windows 11 update guide and the 24H2-specific version . If your machine won’t even reach recovery, the Windows 11 stuck on restarting screen guide covers earlier boot failures.

Closing

The SrtTrail.txt loop feels like a dead end because Windows keeps offering the same failed repair. The way out is manual: rebuild the boot files, check the disk, repair the system offline. Nine times out of ten, Fix 2 or Fix 3 gets you back to a desktop — and once you’re in, a full backup is the first order of business.

Frequently asked questions

What is the SrtTrail.txt error?
SrtTrail.txt is the log file Windows Startup Repair writes when automatic repair fails. Seeing it referenced means Windows tried and failed to fix a boot problem, then got stuck looping back into the repair screen. The underlying causes include corrupt boot files, damaged system files, bad disk sectors in boot areas, or a broken BCD store.
Will I lose my files fixing the SrtTrail.txt loop?
The repair commands in this guide (bootrec, bcdboot, CHKDSK, SFC) don’t touch your personal files. Only the reset options at the end risk data, and even those offer a keep-my-files choice. Still, if you can access the Command Prompt in recovery, copy critical files to a USB drive first as insurance.
Why does Startup Repair keep failing?
Startup Repair is good at simple problems and helpless at the common hard ones: a corrupt BCD store, system-file damage it can’t source replacements for, or disk errors in critical areas. When it fails twice, stop letting it retry and move to manual repairs — the log file it writes is just telling you it gave up.
How do I get to the recovery Command Prompt?
From the automatic repair screen, choose Advanced options > Troubleshoot > Advanced options > Command Prompt. If you can’t reach the repair screen, force it: power on the laptop and hold the power button to force-shutdown during the Windows logo, twice in a row. The third boot enters recovery automatically.