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Oct 15, 2020 · The reboot and select proper boot device error is frustrating. It appears without warning and can cripple your computer, leaving you locked out of your important files. You can use one of the fixes to restore your boot devices to their proper order and regain access to your computer.
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Jan 12, 2023 · 开机出现reboot and select proper boot device or Insert boot media in select boot 应该是由于CMOS里面被篡改了启动顺序，变成光盘启动了，而且在光驱无盘的情况下不能自动更改回硬盘启动。. 试试能不能用其他热键进入BIOS，比如F2，能进去的话就手动修改BOOT ORDER，进不去的话 ...
- Check The Cables. You should first check the cables to see if they’ve been dislodged from either the motherboard or the hard drive. If the PC case has been moved recently, it could be a contributing factor.
- Enter BIOS/UEFI. The BIOS is a software that lives in your motherboard. Simply put, it’s the program that runs the whole show – from your operating system down to all the hardware components.
- Check BIOS Settings. There’s a good chance that your BIOS settings page will look different from someone else’s. It all depends on the manufacturer. However, the basic functions should be the same.
- Review the Boot Order. Inside BIOS, there should be a tab called Boot or something similar. Open that tab. Here, you’ll find a list of programs arranged in the order they’ll start when the computer opens.
- Enable or disable Legacy Boot (only UEFI computers) Restart the computer and enter UEFI settings. Search the Legacy Boot option. Enable or disable Legacy Boot.
- Change the boot order in BIOS 1. Restart the computer and enter BIOS. To do this, you need to press the BIOS shortcut key for your specific device. It could be: F2, F10, F12, Delete, Esc, etc.
- Use Startup Repair and diskpart. Insert a Windows installation disk or USB. Launch BIOS and navigate to the Boot section. Select CD-ROM Drive as the primary boot source.
- Replace the CMOS battery. Open your computer case. Locate the CMOS battery on the motherboard. Remove the CMOS battery. Press and hold the Power button for 10 seconds.
Feb 13, 2022 · If the problem is only that the wrong boot device is selected, you can fix it quickly by simply entering your BIOS settings and changing which disk is the boot device. Since you can’t reach your operating system, you can’t enter BIOS from the Advanced Startup Menu in Windows.
Sep 28, 2020 · In some cases, your basic input/output system (BIOS) may come with a feature called a legacy boot, which can cause the “reboot and select proper boot device” error. Simply disabling it or enabling it, can fix the error message.
Apr 19, 2024 · Fix 1. Select Proper Boot Device by Changing Boot Order. Generally, you don't need to change anything in your BIOS because your BIOS should be configured automatically. However, if you have replaced the old system disk with a new one, you need to set your boot priority drive. Follow the steps below to select the proper boot device. Step 1.
