Lenovo ThinkPad T440s Hardware Maintenance Manual page 37

Resetting your computer to the factory default settings
If you want to recycle your computer or just start over, you can reset your computer to the factory default
settings. Resetting the computer will reinstall the operating system, reinstall all the programs that came with
your computer, and reset all the settings to the factory default settings.
Attention: All the personal files and settings will be deleted after you reset the computer to the factory
default settings. Ensure that the user has made a backup copy of all the data before restoring the computer
to the factory default settings.
To reset your computer, do the following:
1. Depending on the operating system, do one of the following:
• For Windows 8: Move your pointer to the bottom-right corner of the screen to bring up the charms.
Click Settings ➙ Change PC settings ➙ General.
• For Windows 8.1: Move your pointer to the bottom-right corner of the screen to bring up the charms.
Click Settings ➙ Change PC settings ➙ Update and recovery ➙ Recovery.
2. In the Remove everything and reinstall Windows section, click Get started.
3. Depending on your needs, do one of the following:
• To perform a quick format, click Just remove my files to start the process. The process will take
several minutes.
• To perform a complete format, click Fully clean the drive to start the process. The process will
take several hours.
4. Follow the instructions on the screen to reset your computer to the factory default settings.
Using the advanced startup options
With the advanced startup options, you can change the firmware settings of the computer, change the
startup settings of the Windows operating system, start the computer from an external device, or restore the
Windows operating system from a system image.
To use the advanced startup options, do the following:
1. Depending on the operating system, do one of the following:
• For Windows 8: Move your pointer to the bottom-right corner of the screen to bring up the charms.
Click Settings ➙ Change PC settings ➙ General.
• For Windows 8.1: Move your pointer to the bottom-right corner of the screen to bring up the charms.
Click Settings ➙ Change PC settings ➙ Update and recovery ➙ Recovery.
2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options.
3. Select a desired startup option, then follow the instructions on the screen.
Using the Windows recovery environment
The Windows recovery environment on your computer is capable of operating independently from the
Windows 8 or Windows 8.1 operating system. This enables you to recover or repair the operating system
even if the Windows 8 or Windows 8.1 operating system fails to start.
After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then
you can choose repair and recovery options by following the instructions on the screen.
Note: Ensure that your computer is connected to ac power during the recovery process.
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Chapter 4 Related service information
31