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If Windows stopped starting after an update, driver, application, or settings change, work through Windows Recovery Environment (WinRE) before reinstalling anything. Start with Startup Repair, then choose the rollback tool that matches the change: Uninstall Updates for a Windows update, System Restore for a driver, app, or configuration change, and Safe Mode when you need to remove software manually. Use DISM followed by SFC for damaged Windows components. Reserve Reset this PC or a reinstall for cases that targeted repairs cannot resolve, and back up data before any operation that can erase it.
What to do first when Windows will not boot
Stop trying random fixes and get to the recovery tools. Windows Recovery Environment (WinRE) is the built-in workspace for troubleshooting a computer that cannot reach the desktop. Windows can open it automatically after repeated failed starts. If it does not, use one of these routes:
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- From a sign-in or power screen, hold Shift while selecting Restart, then choose the recovery options.
- Use Advanced startup from Windows when you can still reach that interface.
- On another working PC, create Windows installation media, boot the failed computer from that USB drive, and select Repair my PC rather than starting an installation.
Once WinRE is open, select Troubleshoot. The exact menu names below are the standard Windows 10 and Windows 11 paths, although the appearance can vary slightly by build and manufacturer.
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Use this recovery order
- Startup Repair: the least disruptive automated check for common startup failures.
- Uninstall Updates: for a boot problem that began immediately after a Windows update.
- System Restore: for a newly installed program, driver, or system-setting change when a restore point exists.
- Startup Settings and Safe Mode: for removing a program or driver directly.
- Command Prompt: run DISM first and SFC second when corrupted Windows components are suspected.
- Reset this PC: reinstall Windows after targeted repairs fail, choosing carefully between keeping and removing personal files.
- Installation media: the fallback when the local recovery tools are unavailable or ineffective.
This order moves from focused, reversible actions to progressively more disruptive ones. Do not jump to a clean installation while a narrower rollback could solve the problem.
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Run Startup Repair before changing anything else
In WinRE, go to Troubleshoot > Advanced options > Startup Repair. Windows examines common causes of a failed start, including damaged system files and boot-configuration errors, and attempts an automatic repair.
Startup Repair is designed for the boot process itself. It is not a general uninstall tool, and it will not necessarily remove a recently installed application or reverse every driver change. Let it complete without powering off the computer. If Windows starts afterward, sign in and confirm that the change that triggered the failure is no longer active before resuming normal work.
If Startup Repair reports that it could not repair the PC, return to Advanced options and select the rollback that corresponds to what changed.
Match the rollback to the software change
Windows Update caused the failure
Choose Troubleshoot > Advanced options > Uninstall Updates. This is the focused option for a startup problem that appeared after Windows installed an update. Follow the on-screen choices for the available update type, then restart.
Uninstall Updates is narrower than a full system rollback: it targets the update rather than rewinding unrelated applications, drivers, and settings. If the option is unavailable or does not resolve the boot failure, use System Restore when a suitable restore point exists.
A driver, application, or setting changed
Select Troubleshoot > Advanced options > System Restore. Choose a restore point dated before the problem began, review the affected changes, and confirm the restore. System Restore rolls back system files and settings while leaving personal files in place. It can remove a recently installed driver or application if that change is captured by the selected restore point.
A restore point is required. If none is available, do not interpret the missing list as evidence that your personal files are gone; it only means this rollback route cannot be used on that installation.
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From WinRE, open Troubleshoot > Advanced options > Startup Settings, select Restart, and choose the Safe Mode option shown on the next screen. Safe Mode starts Windows with a minimal set of drivers and services, which can allow you to undo a change that blocks a normal startup.
After signing in to Safe Mode:
- Uninstall the program installed immediately before the failure.
- Roll back or remove the newly installed driver using the appropriate device-management controls.
- Undo the configuration change that preceded the first failed boot.
Restart normally after making the change. Safe Mode is a diagnostic state, not a permanent repair; if normal startup still fails, return to WinRE and continue with the targeted recovery options.
Repair damaged Windows components from Command Prompt
Use this route when the symptoms suggest corrupted Windows files or when the graphical recovery choices have not restored startup. In WinRE, select Troubleshoot > Advanced options > Command Prompt. Run the commands in this order:
- Type
DISM.exe /Online /Cleanup-image /Restorehealthand press Enter. - When DISM finishes, type
sfc /scannowand press Enter.
DISM repairs the Windows component store and supplies the files that SFC may need. SFC then scans protected system files and replaces damaged copies. Reversing the order can leave SFC without the repair source it expects, so run DISM first.
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Compare the recovery choices before you select one
| Recovery choice | Personal files | Apps, drivers, or settings | External media | Best match |
|---|---|---|---|---|
| Startup Repair | Preserved | Targets startup files and configuration | Not required when WinRE opens | Common boot failures |
| Uninstall Updates | Preserved | Removes the selected Windows update | Not required when WinRE opens | Failure after Windows Update |
| System Restore | Personal files remain in place | Reverses system files and settings; may remove a recent app or driver | Not required when a restore point is available | Recent driver, application, or configuration change |
| Safe Mode | Preserved | Lets you remove or undo software and drivers manually | Not required when WinRE opens | Change can be removed inside Windows |
| DISM and SFC | Preserved | Repairs Windows components and protected files | Not required when WinRE opens | Corrupted system files |
| Reset this PC — Keep my files | Preserved | Removes apps and settings while reinstalling Windows | Usually not required | Targeted repairs failed but files must remain |
| Reset this PC — Remove everything | Deleted | Removes apps, settings, and personal files | Usually not required | Fresh start after a verified backup |
| Installation media repair | Depends on the selected setup path | Repair entry returns to WinRE; reinstall choices determine what is removed | Required | WinRE is unavailable or local recovery fails |
| Clean installation | Deleted | Removes apps and settings | Required | Last-resort replacement of the Windows installation |
When to use Reset this PC
Choose Troubleshoot > Reset this PC only after Startup Repair, the appropriate rollback, Safe Mode, and file repair have failed or are unavailable. Reset reinstalls Windows, so it is a larger change than removing one update or restoring one configuration point.
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Keep my files
Keep my files preserves personal files but removes installed applications and system settings. You will need to reinstall programs and reconfigure Windows afterward. Personal files are not a substitute for a backup: copy important documents, photos, and other irreplaceable data to a separate location whenever you can before starting the reset.
Remove everything
Remove everything deletes personal files as well as applications and settings. Select it only when you have a verified backup or intentionally want to erase the installation.
Check encryption before resetting
If the Windows drive uses BitLocker encryption, locate the BitLocker recovery key before beginning recovery. WinRE or Reset may request that key, and proceeding without it can leave you unable to unlock the drive. Keep the key accessible independently of the failed PC.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Create and use Windows installation media
Use another working PC to create bootable Windows installation media with Microsoft’s Media Creation Tool instructions. A USB flash drive is the practical choice because it can start a machine whose internal recovery environment will not load. Creating the media requires a USB drive that can be erased during the creation process; copy anything important from that drive first.
- Create the bootable Windows media on the working computer.
- Connect it to the computer that will not boot.
- Start the failed computer and choose the USB device in its boot selection interface.
- At Windows Setup, select Repair my PC rather than starting an installation.
- Use the WinRE options described above: Startup Repair, Uninstall Updates, System Restore, Startup Settings, or Command Prompt.
If repair from the USB does not work, the same media can start a reinstall. The data outcome depends on the setup path you choose: some installation paths can preserve personal files and applications, while a clean installation removes data, applications, and settings. Read every confirmation screen and do not delete or format partitions unless you have deliberately chosen that outcome and secured a backup.
How to diagnose the trigger from the symptoms
The first failure followed an update restart
Open Uninstall Updates first. This directly reverses the most recent Windows update and avoids removing unrelated programs. If that does not help, try System Restore or file repair.
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The failure appeared immediately after installing an application
Try System Restore to a point before the installation. If no restore point exists, use Safe Mode to uninstall the application. Startup Repair remains appropriate when the machine cannot reach the recovery menus without assistance.
The screen changed after a graphics, storage, network, or other driver installation
Use System Restore when possible, or enter Safe Mode and remove or roll back the driver. A driver change can prevent normal startup even though personal files are unaffected.
The machine repeatedly returns to Automatic Repair
Automatic Repair is part of the startup-recovery cycle, not proof that Windows has fixed the underlying cause. From its Advanced options link, select Startup Repair once, then move to Uninstall Updates, System Restore, Safe Mode, or Command Prompt according to the change that preceded the loop.
WinRE never appears
Use installation media from another PC and select Repair my PC. This supplies an independent path into the same recovery workspace without requiring the installed Windows copy to start.
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- Do not begin with Remove everything. It deletes personal files; use targeted recovery first.
- Do not confuse System Restore with a personal-file backup. It protects personal files during the rollback, but it is not a replacement for a separate backup.
- Do not interrupt a repair scan or reset. Unexpected shutdowns can add file-system damage to the original startup problem.
- Record the exact change and time. The first failed restart, update name, driver, or application narrows the correct recovery choice.
- Keep the BitLocker key available. Encryption can make the recovery key a prerequisite for accessing the installation.
- Read reinstall confirmations. “Keep my files,” “Remove everything,” and a clean install have materially different results.
Windows 10 support status
The recovery procedures above apply to Windows 10 and Windows 11. Microsoft ended Windows 10 support on October 14, 2025. WinRE, Startup Repair, System Restore, Safe Mode, DISM, SFC, Reset, and installation media can still function on an existing Windows 10 computer, but an unsupported Windows 10 installation no longer receives free Windows Update support or security fixes. After recovering the machine, plan for a supported operating system rather than treating recovery as a return to supported maintenance.
What a successful repair should look like
After Windows starts normally, verify that the triggering change has been reversed: check that the problematic update is gone, the new application or driver is removed, or the restored settings are in effect. Reconnect peripherals one at a time and restart once more before declaring the repair complete. If the same failure returns without another software change, stop repeating the same rollback and investigate a broader Windows or hardware fault through the available support channels.
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