Customer Ratings & Reviews

The Lenovo Yoga C940-14 4K model ships with a 4CELL_60WH_INTERNAL, Lithium Polymer Battery, with a battery life of up to 10 hours, depending on the work the device is performing. It also has Rapid Charge Technology, when using the included AC adapter/charger, you will get 2 hours of battery charge in 15 minutes, 80-percent of full charge charge in 1 hour. If you are getting substantially less battery life and your charging times are longer than expected with the Lenovo Provided AC adapter/charger, first, set your screen brightness at less than 100-percent - try 80-percent to start with. Then, be sure Battery conservation Mode is turned off. This power management setting should only be used when the laptop is plugged in all the time. It will prolong overall battery life by only charging the battery to 60-percent of capacity. Here is a link to instructions for turning off Battery Conservation Mode: https://support.lenovo.com/us/en/solutions/ht103159. Also check what programs are running in the background on the computer. Be sure only the programs you want running in the background are. These programs will drain the battery. Here is a link to information about how to find out what programs are running in the background on your Windows 10 computer and how to manage them for better system performance: https://www.windowscentral.com/how-prevent-apps-running-background-windows-10. Then, finally, be sure any software you installed is compatible with Windows 10. Incompatible software will drain the battery at a faster rate. There is no need to install Microsoft Office software. The software is already part of the operating system, you just need to activate the software with a purchased product key. If you have installed a copy of Microsoft Office, this is conflicting with the existing copy on the system and this will slow your system down. If you have installed a 3rd party anti-virus program, be sure that Windows Defender is turned off and that the trial version of McAfee Anti-Virus software is uninstalled. There can only be one anti-virus program on the system. You may need to restore your system to original factory default settings if any of the programming errors have occurred. You can do that by typing "restore" in the Cortana search window. Just click on the magnifying glass icon at the bottom left of your Windows 10 Desktop. Click on "Reset This PC" Then click on "Get Started" and follow the on screen directions to restore to factory defaults. If the problem persists, we recommend you contact Lenovo Tech Support at: 877-453-6686. Additionally, the Yoga C940-14 4K model ships with its own garaged active pen which will charge within the computer when not in use but it is also compatible with 3rd. party AES protocol Active Pens like this one:  https://www.bestbuy.com/site/wacom-bamboo-ink-smart-stylus-for-windows-ink-2nd-generation-gray/6374981.p?skuId=6374981.

Thank you for choosing the Lenovo Yoga C940-14 4K model. The heart of the Yoga C940-14 4K is the Windows 10 Operating System. With regard to learning your way around Windows 10, you may want to try YouTube.com (just type that address in your browser address window). There are hundreds for free instructional videos there about Windows 10. Just type Windows 10 Introduction in to the YouTube search window. You can watch free videos there that will show you the basics all the way up to tips and tricks videos and they're all free.

We are sorry to hear that you had issues connecting your Lenovo Yoga C940-14 4K model to a docking station. This configuration is compatible with any universal, Thunderbolt 3.0 docking station. We recommend you contact Lenovo Tech Support with your ticket number from your previous Tech Support contacts at: 877-453-6686.

Once again, thank you for choosing the Lenovo Yoga C940-14 4K model. You can keep your computer running at its best by keeping the Windows 10 Operating System and all supporting BIOS files and drivers up to date. You can easily accomplish this by scanning the computer with the Lenovo Utility software available on this computer. This system has Lenovo utilities installed to help maintain the health of the device and keep the operating system software up to date. Type "Lenovo Vantage" in the Cortana Search window (if Lenovo Vantage is not installed on your device, you can download the APP and install it now). Select Lenovo Vantage from the list. In the window that opens, click on "Health and Support". In the expanded menu, select "Hardware Scan" In the window that opens, select "Run Quick Tests". This will scan your entire system for errors. Follow any directions that may pop up. If the problem continues after this scan, now click on "System Update". First select Windows update from the menu. Scan your system to be sure you have the latest version of Windows 10. Once that scan is complete, select "Additional Updates". This will scan your device to be sure there are no new BIOS/Driver updates needed. Follow any instructions that may pop up. If you ever need additional help with your Lenovo computer, we recommend you call Lenovo Tech Support at: 877-453-6686 for additional help.

Once again, thank you for choosing the Lenovo Yoga C940-14 4K model. You can keep your computer running at its best by keeping the Windows 10 Operating System and all supporting BIOS files and drivers up to date. You can easily accomplish this by scanning the computer with the Lenovo Utility software available on this computer. This system has Lenovo utilities installed to help maintain the health of the device and keep the operating system software up to date. Type "Lenovo Vantage" in the Cortana Search window (if Lenovo Vantage is not installed on your device, you can download the APP and install it now). Select Lenovo Vantage from the list. In the window that opens, click on "Health and Support". In the expanded menu, select "Hardware Scan" In the window that opens, select "Run Quick Tests". This will scan your entire system for errors. Follow any directions that may pop up. If the problem continues after this scan, now click on "System Update". First select Windows update from the menu. Scan your system to be sure you have the latest version of Windows 10. Once that scan is complete, select "Additional Updates". This will scan your device to be sure there are no new BIOS/Driver updates needed. Follow any instructions that may pop up. If you ever need additional help with your Lenovo computer, we recommend you call Lenovo Tech Support at: 877-453-6686 for additional help.

Hello. Thanks for choosing the Lenovo Yoga C940 Laptop. We are pleased to hear the features, performance, and design of the Yoga C940 are meeting your computing needs so well! We appreciate your feedback and we recommend an external USB to HDMI adapter or dongle like this one. https://www.bestbuy.com/site/j5create-usb-type-c-to-hdmi-video-adapter-gray-white/6201446.p?skuId=6201446

We are sorry to hear that you are having issues with your Lenovo Yoga C940-14 4K model. It is possible that resetting the computer back to original factory settings will correct the issues you are having. Here is a link to instructions for resetting your Windows 10 computer back to original settings:  https://support.microsoft.com/en-us/help/12415. Once you have the computer reset, be sure any software you installed is compatible with Windows 10. There is no need to install Microsoft Office software. The software is already part of the operating system, you just need to activate the software with a purchased product key. If you have installed a copy of Microsoft Office, this is conflicting with the existing copy on the system and this will slow your system down. If you have installed a 3rd party anti-virus program, be sure that Windows Defender is turned off and that the trial version of McAfee Anti-Virus software is uninstalled. There can only be one anti-virus program on the system. You may need to restore your system to original factory default settings if any of the programming errors have occurred. You can do that by typing "restore" in the Cortana search window. Just click on the magnifying glass icon at the bottom left of your Windows 10 Desktop. Click on "Reset This PC" Then click on "Get Started" and follow the on screen directions to restore to factory defaults. If the problem persists, we recommend you contact Lenovo Tech Support at: 877-453-6686.

Thanks for choosing the Lenovo Yoga C940 4k Laptop. We are pleased to hear the features, performance, ultra HD resolution, build quality, included pen, and feather light design of the Yoga C940 4k are meeting your computing needs so well! Try enabling Dolby Atmos by typing "Dolby Atmos Speaker System" into the Windows 10 Cortana search bar, opening the app, and clicking the power button. Switch profiles depending on your usage mode to enhance the sound quality.

Once again, thank you for choosing the Lenovo Yoga C940-14 4K model. You can keep your computer running at its best by keeping the Windows 10 Operating System and all supporting BIOS files and drivers up to date. You can easily accomplish this by scanning the computer with the Lenovo Utility software available on this computer. This system has Lenovo utilities installed to help maintain the health of the device and keep the operating system software up to date. Type "Lenovo Vantage" in the Cortana Search window (if Lenovo Vantage is not installed on your device, you can download the APP and install it now). Select Lenovo Vantage from the list. In the window that opens, click on "Health and Support". In the expanded menu, select "Hardware Scan" In the window that opens, select "Run Quick Tests". This will scan your entire system for errors. Follow any directions that may pop up. If the problem continues after this scan, now click on "System Update". First select Windows update from the menu. Scan your system to be sure you have the latest version of Windows 10. Once that scan is complete, select "Additional Updates". This will scan your device to be sure there are no new BIOS/Driver updates needed. Follow any instructions that may pop up. If you ever need additional help with your Lenovo computer, we recommend you call Lenovo Tech Support at: 877-453-6686 for additional help.

We are pleased to hear that the features and performance of the Lenovo Yoga C940-14 4K model are working out so well for you.

Hello. Thanks for choosing the Lenovo Yoga C940 Laptop. We are pleased to hear the features, performance, and design of the Yoga C940 are meeting your computing needs so well!