When you use the Recovery Environment (Windows RE) to troubleshoot startup issues, first try the Startup Repair option in the System Recovery Options dialog box. If this does not resolve the issue, or if you have to manually troubleshoot additional issues, use the Bootrec.exe tool.

When critical Windows system files are missing or corrupted, your operating system may begin to malfunction. Common symptoms include Windows features not working properly, system errors, or Windows becoming unresponsive or freezing.

Start your device from the USB drive that was created with Recovery Drive. The process to boot from a USB drive may vary by manufacturer, so refer to your device's manual if needed. Create a recovery drive to reinstall Windows in case you experience a major issue such as hardware failure.

To find information about restoring your device in this scenario, please visit the article, Windows Recovery Environment. These steps might look complicated at first glance, but following them in order, step-by-step, will help get you back on track. Sign in to the computer as an administrator.

There are steps you can take if you turn on a Surface device and see "Couldn't find a bootable operating system."

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.

Download and install any available updates in Windows Update, including software updates, hardware updates, and some third-party drivers. Use the Windows Update Troubleshooter to fix Windows 11 Update errors. Check third-party drivers and download any updates.

Describes a hotfix that introduces new event log entries that help you track NTLM authentication delays and failures in Windows Server 2008 SP2. true.

Controls which Secure Boot update actions to perform on the device. Setting the appropriate bitfield here initiates the deployment of new Secure Boot certificates and related updates.

Startup Repair is a Windows recovery tool that can fix certain system problems that might prevent Windows from starting. It scans your computer for the problem and then tries to fix it so your computer can start correctly.