In this instruction detailed what to do when the No Bootable Device error appears on the Acer, HP, Lenovo, Dell laptop and others. However, the error may occur on the desktop.
- First actions when mistaken No Bootable Device
- Download options and download devices availability
- Video instruction
First actions when an NO Bootable Device error appears
If until recently, everything worked properly, no action with a laptop was not made (for example, installing new drives) and the next time you turn on the laptop you encountered the NO Bootable Device message, to start it makes sense to try the next simple solution to solve the problem.
- Turn off the laptop long retention button (about 10 seconds).
- Disconnect any external drives from the laptop: flash drives, memory cards, external hard drives, and better - all that has recently connected via USB.
- Turn on the laptop again and check whether the problem has been preserved.
The described turns out to be operational not always, but sometimes avoids the need to fulfill the actions described and saves time.
And one more thing that should be taken into account before moving on: if the error appears and disappears - for example, after the sleep mode, hibernation or even completing the error, there is no error, and after the reboot - no, and Windows 10 is installed on the laptop, Windows 11 or 8.1, try to disable quick start and install chipset drivers from the laptop manufacturer website for your model - it can solve the problem.
Check the download parameters and availability of the download device
Note: All the above is further relevant for cases when a disk with the system is installed on your laptop. If you installed a new Clean SSD or HDD drive, you need to simply install the system from the flash drive so that the error does not appear.
As mentioned above, the message itself NO Bootable Device - Insert Boot Disk and Press Any Key is translated as "no download device - insert the boot disk and press any key." However, it is not always the fact that such a disk is really absent, the reason may be different:
- Incorrect load order in BIOS / UEFI, especially after installing new disks.
- Incorrect loading parameters (for example, the BIOS is displayed only in UEFI mode, and the disk system is installed in Legacy mode), may occur after resetting parameters or after updating the BIOS.
- Damage to the system loader.
All this should be checked for this:
- Turn off the laptop or PC long holding the power button, turn on and even before the NO Bootable Device message appears, press the BIOS / UEFI input key. Usually this F2. or Fn + F2. But there are other keys: as a rule, the desired key is specified on the first download screen (for example, Press F2 to Enter Setup).
- BIOS go to the tab Boot : As a rule, it can be done using the "right" arrows.
- Check the parameter Boot Mode. (In the case of a laptop Acer, on other switching mode switching may differ). If it is installed in "UEFI", try installing "Legacy" and vice versa: UEFI instead of Legacy, then save the settings with the F10 key (or on the EXIT tab, select "Exit Saving Changes") and check if the error disappeared when the next time turned on. Also, if the UEFI and Secure Boot download was set - "Enabled", you can try to disable Secure Boot (install in Disabled) and also check if it solved the problem. If not, return the source parameters, and then go to the next step.
- Look, whether your main hard disk or SSD is installed first in the download device list on the Boot tab. If not, move it to the first place (we allocate it and use the keys that will be listed in the help, as a rule, in the panel on the right, usually - F5 and F6). If Windows Boot Manager is present in the list, it is better to put it on the first place, and not the disc itself. Again, save the BIOS settings and look if it solved the problem.
- If there is no system hard disk or SSD in the download devices list, it is possible to try to physically reconnect the disk, it can also talk about the storage fault.
- If the disk is present, the system on it has been installed, but the error is saved, the bootloader can help can help, more: how to restore Windows 10 bootloader.
- If you detected when restoring the bootloader at the command line, you have some of the partitions of the disk in the file system type, check the disk file system there in the command prompt, more details: how to fix the RAW disk.
Video instruction
If the NO Bootable Device problem is saved, while the disk is working and visible in the system, you can always install OS updated from scratch, for example, like this: installation of Windows 10 from the flash drive. If there is important data on the system disk, you can install the installation without formatting.