The "no bootable devices found" error can create headaches, as well as occasional heartache if you're a laptop user.
This error appears when your computer is unable to find a device or file required for normal operation. It could indicate one of three issues: hard drive failure, software error or motherboard malfunction.
Any of these potential problems can render your laptop useless.
Hard drive failure or software errors can lead to data loss, which can cause anguish and catastrophe, depending on the files business information, family photos, student projects at risk. Hard Drive Failure
The interior of a hard drive is akin to a turntable.
Most hard drives contain two to three discs, known as platters, which are similar to records. These platters are read and written on by a tiny needle called the read/write head, similar to the arm and needle on a turntable.
When a hard drive functions properly, the platters spin and the read/write head accesses the files necessary to boot your computer.
Improper function of any of these physical pieces can cause a mechanical failure and result in the "no bootable devices" error. Software Error
In rare instances, a software problem more specifically, a particularly nasty virus may cause the "no bootable devices" error. Most often, if a virus attacks and corrupts your system, your computer can still detect the hard drive and operating system, and you'll see some attempt at a normal boot. If a virus attacks certain system and startup files, however, they may not be detectable next time you boot your computer, thus causing you to see "no bootable devices." This may also happen if you are manually deleting files from your computer and accidentally delete system files. Motherboard
b> Sometimes individual components of your laptop's motherboard malfunction, which can cause problems ranging from loss of wireless capabilities to inability to detect an external power source. If the components that detect your hard drive fail, your laptop is unable to receive signals from the hard drive and therefore may display the "no bootable devices" error. b> Repair
b> Fixing a "no bootable devices" error can prove costly. If motherboard failure caused the error, you're probably better off purchasing a new laptop; unless it's under warranty; the average motherboard replacement costs $250 to $500. You can reinstall your operating system to resolve software errors, which is fairly inexpensive by computer repair standards, costing $80 to $130 dollars, but this step may also overwrite your existing data. In some cases, data may prove so badly corrupted it's not salvageable. If you can recover it, however, that raises your repair costs. additional fee. If hard drive failure caused your "no bootable devices" error, you can replace the drive. If you need to recover data from a malfunctioning hard drive, send it to a clean room for recovery. In a clean room, technicians disassemble your hard drive and image each platter; this kind of data recovery is extremely expensive, costing up to $2000 depending on the work involved. b> Prevention
b> There is no way to guarantee you will never receive a "no bootable devices" error, but there are some steps you can take to help prevent it from happening. Keep your laptop on a flat surface when using it, and avoid any bumps that may cause the hard drive's read/write mechanism to lock up. Avoid transporting your laptop while the hard drive is active; turn your computer off while traveling. Additionally, regularly run an anti-malware program to catch and remove viruses or spyware before they cause system problems. http://www.upgradenrepair.com/Issues/N/nobootabledevicefound.htm