Note:
For computers with Hotkey mode enabled, press Fn+F12.
2. Select the device that you want the computer to start from and press Enter.
Set the system date and time
1. Start the UEFI/BIOS setup utility.
2. Select
Configuration
➙
System Time/System Date
and set the system date and time as desired.
3. Press F10 to save changes and exit.
Enable/Disable hotkey mode
Step 1. Start the UEFI/BIOS setup utility.
Step 2. Select
Configuration
➙
Hotkey Mode
and press Enter. Change the setting to
Disabled
or
Enabled
.
Step 3. Select
Exit
➙
Exit Saving Changes
.
Enable/Disable always-on
For some Lenovo computers with always-on connectors, the always-on function can be enabled/disabled in
the UEFI/BIOS setup utility.
Step 1. Start the UEFI/BIOS setup utility.
Step 2. Select
Configuration
➙
Always On USB
and press Enter; change the setting to
Disabled
or
Enabled
.
Step 3. Select
Exit
➙
Exit Saving Changes
.
Note:
If Lenovo Vantage (software) is pre-installed on your computer, you can also enable/disable always-on
in it.
Update UEFI/BIOS
When you install a new program, device driver, or hardware component, you might need to update UEFI/
BIOS.
Download and install the latest UEFI/BIOS update package by one of the following methods:
• From Lenovo Vantage:
1. Open the Start menu and click
Lenovo Vantage
.
2. Click
System Update
. In the
Lenovo System Update
section, click
Check for updates
. The
available update packages are displayed and categorized by critical, recommended, or optional.
3. If the latest UEFI/BIOS update package is available, select the package and click
Install selected
.
Then, the update package will be downloaded and installed automatically.
• From the Lenovo Support Web site:
Go to
and select the entry for your computer. Then, follow the on-screen
instructions to download and install the latest UEFI/BIOS update package.
Recovery information
This section introduces the recovery information of the Windows 10 operating system. Ensure that you read
and follow the on-screen recovery instructions. The data on your computer might be deleted during the
recovery process. To avoid data loss, make a backup copy of all the data that you want to keep.
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Lenovo IdeaPad S540-15IWL User Guide
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