7. Press F10 to save the settings and exit the ThinkPad Setup program.
8. Connect an external DVD drive to the computer, insert the Windows 7 operating system installation DVD
into the drive, and then restart the computer.
Notes:
• If you start the installation DVD image from an external USB device or if your computer has an NVM
Express drive installed, do additional configurations before you start. For more information, go to
https://support.lenovo.com/us/en/solutions/ht103541.
• If an NVM Express drive is installed, additional drivers also are required. For more information, go to
https://support.microsoft.com/en-us/kb/2990941.
9. Restore the folder at C:\SWTOOLS that you backed up.
10. Install the device drivers. See “Installing device drivers ” on page 69.
11. Install the Windows 7 fix modules. You can find the Windows 7 fix modules at C:\SWTOOLS\OSFIXES\. For
more information, go to the Microsoft Knowledge Base home page at https://support.microsoft.com/.
12. Install the registry patches. To download and install the registry patches, go to the Lenovo Support Web
site at https://support.lenovo.com.
Note: After installing the operating system, do not change the initial UEFI/Legacy Boot setting in the
ThinkPad Setup program. Otherwise the operating system will not start correctly.
When you install the Windows 7 operating system, you might need one of the following country or region
codes:
Country or region Code Country or region Code
Mainland China SC Netherlands NL
Denmark DK Norway NO
Finland FI
Spain SP
France FR Sweden SV
Germany GR Taiwan and Hong Kong TC
Italy IT United States US
Japan JP
Installing the Windows 10 operating system
Microsoft constantly makes updates to the Windows 10 operating system. Before installing a particular
Windows 10 operating system, check the compatibility list of the Windows versions supported on the your
computer. For details, go to https://support.lenovo.com/us/en/solutions/windows-support.
Attention:
• It is recommended that you update your operating system through official channels. Any unofficial update
might cause security risks.
• The process of installing a new operating system deletes all the data on your internal storage drive,
including the data that were stored in a hidden folder.
To install the Windows 10 operating system, do the following:
1. Ensure that you set the security chip to TPM 2.0. For more information, see “Setting the security chip”
on page 61.
68
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