Pri master hard disk: S.M.A.R.T. command failed

This issue may occur if one or more of the following conditions are true:

• The basic input/output system (BIOS) does not detect the hard disk.
• The hard disk is damaged.
• Sector 0 of the physical hard disk drive has an incorrect or malformed master boot record (MBR).

Check your BIOS or System Setup to see if it detects your hard disk drive.
If it does see your hard disk drive then follow these instructions to fix your master boot record (MBR)
windows XP XP Repair or Fix Master Boot Record Using Recovery Console
windows 7
Step one: Turn your computer on, booting from either your Windows 7 Installation DVD or Windows 7 System Recovery Disc. Remember, you may need to change the boot order inside your BIOS to have the your DVD drive boot first.
Step two: After the installation or recovery disc loads, if prompted, select your language settings and then continue. If you are using the installation DVD, when prompted by the following screen select Repair your computer.
Step three: The computer will take a moment now to scan itself for any Windows installations, after which you will likely be given a choice to select which installation you wish to repair. Select the appropriate Windows installation from the list and then continue. If by chance a problem is detected in one of your Windows installations at this initial stage, the system may also ask you if it can try to repair the problem automatically. It is up to you if you wish to let the system try to repair itself, but otherwise just select No. Step four: Once you have reached the System Recovery Options screen, as shown below, you will be faced with a list of choices that can aid you in repairing a damaged Windows 7operating system. If you wish to try the Startup Repair option first, it is often successful in automatically fixing many different start up issues, but in this article we will be using the Command Prompt option to resolve our problems manually. So, click Command Prompt to continue. Step five: Now sitting at the command prompt, enter the following command and then press enter:
bootrec.exe /FixMbr
While the above command does fix the MBR, and sometimes that is enough, there still might be an error with the system partition's boot sector and Boot Configuration Data (BCD). This might occur if you have tried to install another operating system alongside Windows 7, such as Windows XP. To write a new boot sector, try the following command: bootrec.exe /FixBoot

hope that helps

Replace Hard drive and Re-Install the Operating System.

restart computer and press delete button and in BIOS menu go to advanced menu set S.M.A.R.T disabled.

This normaly happens due to a failing Hard disk. By this i mean the booting files, responsible for normal start up of your computer have been modified or deleted. Or it can also be a result of a dropped hard disk. For you to fix this, boot your computer using Error Rescue Disk(ERD). You can get it from the Microsoft website. Its an image, burn it to a cd and boot the computer with that cd. When your computer is booted up, go to start, then Administrative Tools, then Explorer. Make a back up by copying your data to a removable media.(external Hard drive or flash drive). Then go to Erase Disk/ Disk wipe. This will let you clean up your hard drive. Restart your computer with an Operating system disk in it and boot from it to install a new operating system. NOTE: Make sure you download ERD commander 2007 if you are using Xp, and ERD Commander 2010 if you are using Vista or Windows 7

Hopefully, you have kept a backup of your data somewhere ...else.

Windows 7 Directions:
1. Boot from the Windows 7 DVD.
2. Select Repair my computer.
3. Select Command Prompt
4. From the command prompt enter the following command: Chkdsk /R C: where "C" is your boot drive.
5. Answer Y to check the disk the next time that the system restarts.
6. Reboot the system. After the reboot, Windows will check the hard disk and try to repair the damaged area.
7. If you still get the error after this process, repeat the process but try rebuilding the master boot record at the command prompt with the following command: bootrec /fixboot and then rebooting
If your system can be saved, you should now be able to boot back into Windows without a problem.

Obviously, you cannot boot any recovery partition Dell may have provided because your drive won't mount. You are going to have to try using tools you access from a USB port or
CD drive. Which means at some point you have to change the boot sequence to boot from these other devices rather than the hard drive. On power up, you press F2 until the Bios comes up and make the change to boot order there.

You can download and burn the hard drives manufacturer's diagnostics to a CD and boot them from there. Or burn the Ultimate Boot CD. It has many manufacturer's diagnostics upon it.

Frequently Asked Questions

https://www.dell.com/support/article/us/en/19/sln128947/my-dell-computer-did-not-come-with-disks?lang=en

First of all I'm not this smart. I found it and pasted it here for you from:
http://www.pcpowerguide.com/windows/damaged-mbr-error-message/

They get all the credit!

MBR is the acronym for Master Boot Record. The master boot record is located in the boot section of your hard drive, which is the first sector on the first platter. When you boot your computer, the master boot record tells the computer's BIOS (Basic Input Output System) where to find the bootstrap code for the operating system.
So if the MBR is corrupted, the BIOS can't find the operating system and you can get error messages like the following ones:

• Missing operating system
• Error loading system
• Invalid partition table

Looks pretty scary, doesn't it?
However, it is usually not that hard to fix a corrupted MBR and usually the rest f the hard drive is just fine and will boot normally once your fix the master boot record.
What Causes Damage to the MBR? A lot of things can cause damage to the MBR such as viruses designed to corrupt the boot sector. Some of them copy the original MBR to another file. Others do this by overwriting the MBR with virus code. In fact viruses and malware are one of the most frequent causes but, any file can become corrupted especially files that are accessed as frequently as the MBR.
How to Fix the MBR The stapes to fix the MBR are slightly different in the different versions of Windows. So I will cover them separately.
Windows XP

1. Insert your XP installation disk in the CD-Rom and reboot the computer
2. When asked, press any key to boot from the CD
3. When you get the Welcome to Setup screen, press "R" to open the repair console
4. Enter your administrator password when prompted
5. At the command prompt, type fixmbr and press enter
6. When a new command prompt appears, type exit
7. Remove your installation CD
8. Restart the computer

Windows Vista

1. Insert your Vista installation disk in the CD-ROM and reboot the computer
2. When asked, press any key to boot from the CD
3. When you get the Install Windows screen, fill in the language and location options and then click Next
4. Click on the Repair your computer option
5. Select the Windows Vista operating system and click Next
6. Enter your administrator password when prompted
7. In the System Recovery Options, select Command Prompt
8. When a command prompt appears, type bootrec.exe and press enter to fix the MBR
9. When a new command prompt appears, type exit
10. Remove your installation CD
11. Click Restart in the System Recovery Options window

Windows 7

1. Insert your Windows 7 installation disk in the CD-ROM and reboot the computer
2. When asked, press any key to boot from the CD
3. When you get the Install Windows screen, fill in the language, Time and Keyboard Input options and then click Next
4. Click on the Repair your computer option
5. In the System Recovery Options, select Command Prompt
6. When a command prompt appears, change to the boot directory
7. Now type bootsect /nt60 SYS and press enter to fix the MBR
8. When a new command prompt appears, type exit
9. Remove your installation CD
10. Reboot the computer

this is a warning your hard drive is about to fail
you could run the check disk utility
click start run type cmd then type chkdsk/r/f which will scan for and attempt to repair any bad sectors and automatically fix any corrupt files on your hard drive then defragment your hard drive
hope this helps

You do not seem to have a smart capable hard drive, disable the setting in the BIOS by pushing F2

Seems that your hard disk drive is failing. First, try to move your data to another hard drive. You will need to attach your hard drive to a functioning system, & pull out all valuable data from your hard drive. After that, ypu can try to boot with a system disk/CD-ROM, & run CHKDKS C: /F on your hard drive. You can also run the FDISK /MBR command to try to fix the master boot record.
If none of this helps, try re-partitioning your hard drive. If this did not work either, you will need to find a replacement hard drive.

http://www.tech-forums.net/pc/f77/startup-pri-master-hard-disk-s-m-r-t-command-failed-114514/

sounds like your hdd is failing, backup data by using external enclosure and get a new hdd.
try the solution in the link, it may get your computer to boot up.