Reboot and Select proper Boot device error could be a serious system or hardware error. If you have no idea how to fix this error, you can take your computer to the repair shop to have it fixed. But before you decide to do that, you can try the top solutions in this post. You may fix the error on your own with these solutions. Then you don’t need to take the computer to the repair shop and save much money. Apply to Windows 10, 7, 8 & 8.1.


Reboot and Select proper Boot device or Insert Boot media in selected boot device

Firstly, before you take further actions, make sure there is no USB device plugged, no DVD/CD inserted and no floppy in the floppy drive, as these devices can be the cause of the error. Then try the following solutions.

Solution 1: Check for the Power Cable Connecting to the HDD (Hard Disk Drive)

If the power cable is broken or connected incorrectly, the HDD cannot be detected. Then the error would cause. You can test the power cable on another computer. If the error also occurs on that computer, the power cable is broken. Replace it with a new one.

Solution 2: Clean RAM

If the RAM is dusty, the computer may show you this error. Clean the dust on the RAM with a soft cloth and see if the error continues.

Solution 3: Check the Boot Order Settings in BIOS (basic input/output system)

Normally, Windows should boot from hard drive. In the BIOS, if the first boot device is not set as hard drive but an external hard drive like a USB flash drive, the error would occur. So go into BIOS to check and change the boot device to hard drive as first priority if necessary. 

The key or key combination you can use to enter BIOS depends on what PC brand you are using. You can go to the PC manufacturer’s website to check for that. If you are not sure how to enter BIOS, refer How to Enter BIOS for further information.

After entering boot menu, follow the on-screen instructions to go to the Boot priority order part. You may see Enter Setup, Startup, Boot Device Configuration and something like that. Just follow the on-screen commands.


Then set 1st boot device to HDD.


Solution 4: Update Related Drivers (If you can’t start Windows normally, enter safe mode)

The error would occur if some relate drivers are faulty especially drivers for SATA and RAID. Go to the PC manufacturer’s website to check for the latest drivers. If you don’t have the time, you

If you don’t have the time, patience or computer skills to update drivers manually, you can do it automatically with Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing.

You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks:

1) Download and install Driver Easy.

2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.

3) Click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system (this requires the Pro version – you’ll be prompted to upgrade when you click Update All).

Note: You can do it for free if you like, but it’s partly manual.

Hope the solutions here will help you resolve the error. You are welcome to leave your comments below.

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