What is the BIOS setup utility? The BIOS setup utility is ROM-based software. It communicates basic computer information and provides options for setting boot devices, security, hardware mode, and other preferences. How can I start the BIOS setup utility? To start the BIOS setup utility:1. Shut down the computer. 2. Repeatedly press and release the F1 key after turning on the computer, then select Startup → Boot Priority. How can I change the boot mode? There are two boot modes: UEFI and Legacy. To change the boot mode, start the BIOS setup utility and set boot mode to UEFI or Legacy support on the boot menu. When do I need to change the boot mode? The default boot mode for your computer is the UEFI mode. If you need to install a legacy Windows operating system (any operating system before Windows 8) on your computer, you must change the boot mode to Legacy support. The legacy Windows operating system cannot be installed if you don't change the boot mode. User Guide Cleaning the computer components Because many of the computer components consist of sophisticated integrated circuit boards, it is very important to periodically clean the computer to prevent dust buildup. The cleaning supplies you need to clean the components include: a vacuum cleaner, a soft cotton cloth, pure water (preferably purified or distilled water) and cotton swabs. Attention: Before you clean your computer, disconnect the computer from the electrical outlet. Clean your computer with a soft cloth dampened with water. Do not use liquid or aerosol cleaners, which may contain flammable substances. Note: To avoid damaging the computer or display, do not spray cleaning solution directly onto the display. Only use products specifically designed for cleaning displays, and follow the instructions included with the product. The following are general methods for cleaning the components: You can use a soft.
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We have the following Lenovo C340 manuals available for free PDF download. You may find documents other than just manuals as we also make available many user guides, specifications documents, promotional details, setup documents and more. Easily locate Lenovo C340 driver and firmware links available at Driver Owl.com. We keep our list of direct Lenovo C340 driver and firmware links up-to-date so they are easy to find when you need them. View thousands of Lenovo C340 user reviews and customer ratings available at Review Owl.com. Complete Lenovo customer service contact information including steps to reach representatives, hours of operation, customer support links and more from Contact Help.com. See detailed Lenovo customer service rankings, employee comments and much more from our sister site. Find comprehensive Lenovo recall information updated hourly on Recall Owl.com.
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