Computer won’t start?
If your computer won’t start, these simple tips could help you troubleshoot your own computer issues.
Boot issues in general on computer system are particularly annoying as there’s not much you can do without your computer getting into your operating system and it can be very frustrating when the most basic thing won’t work for you.
Assuming it is not an issue related to computer overheating and you have power to your motherboard (you can check this by looking at the motherboard as most of them have a power LED on the actual board itself to show there is power to the system) and no POST (Power On Self Test) beeping sounds, the following steps may help.
Please note however that these issues can all also be caused by other problems such as a failing hard drive or RAM issues, so if the following examples do not fix the issue and your computer won’t start, especially if the system had problems with freezing up on your – consider checking the health of your hardware.
Some of the following things may help you troubleshoot why your computer won’t start depending on your operating system:
– Mac OS X
NTLDR Missing Error
The NT Loader (NTLDR) file is responsible for loading Windows XP your computer won’t start if the NTLDR file is damaged, corrupt or missing and will display an error message like the one below immediately after the computer POST (Power On Self Test)
It can be caused by file corruption, powering off the computer without properly shutting it down, harddrive failure, loose cables and some other generic issues. Once hardware problems have been ruled out you will only need to re-copy the file over to fix the problem.
Boot to the recovery console:
To fix this error the easiest way is to insert a copy of the Windows XP operating system on disk and boot it up, once there you will be able to press the R key to enter the recovery console.
Here you can issue the command to copy over the required files NTLDR and NTDETECT.com from the operating system disk path (default D:\) to the root path of your harddrive which on most installations is the C:\ drive.
Issue the commands:
Copy d:\i386\ntldr C:\
Copy d:\i386\ntdetect.com C:\
If you are asked if you wish to overwrite any files press the Y key.
You can now take out the Windows XP disk and restart your system. If the corruption of these two files was the only problem your system will now boot normally.
Fix Master Boot Record (MBR) Windows XP
If you still have boot problems or have a different message such as “error loading operating system”
Try repairing the Master Boot Record (MBR) you can do this by entering the recovery console using the Windows XP disk as explained in the above section.
Once in the Recovery console, issue the command:
Press the Y key to confirm the writing of the new master boot record and reboot the system once complete.
If on the booting of your Windows 7 system you receive and error stating “your boot configuration data file is missing required information” your computer won’t start up and you will need to repair it.
Insert your Windows 7 disk and boot it up, when loaded choose your region and click the “Repair your computer” button in the bottom left of the window
Select your Windows installation and click ok.
Windows will now try to automatically repair your installation, let it do it’s thing and you will soon be prompted with a message asking if you wish to use system restore to fix your computer.
Click Cancel and instead wait for windows to tell you that it cannot repair the system automatically
From here click the link that says “View advanced options for system recovery and support”
This will give you a list of recovery options, select the Command Prompt option
and issue the command:
You can also use the Bootrec command to fix the MBR in windows 7 with the command
You can also use the command:
to rebuild the boot configuration data in Windows Vista and Windows 7.
With a BootBCD Error you will likely be met by a screen that looks like the one below in Windows 8 which will tell you that your computer system needs repairing.(Get in touch! 😉 )
Your computer won’t start up no matter how many times you try and will need the Boot Configuration Data resetting.
Boot your Windows 8 installation disk or create a recovery USB drive from another Windows 8 system and boot into that instead of the Windows 8 Installation Disk.
Once there, select the Troubleshoot option
and then select the Command Prompt option.
Once here you can issue the same commands as for Windows 7/Vista above
Bootrec.exe /fixmbr (if required)
Once complete, reboot your system and the problem should be remedied. If your computer won’t start after this, it may be something more complex and may require reinstalling your operating system to see if that fixes any issue you may have.
If your computer freezes up when trying to load the System Recovery disk then it is likely your hard drive and you can confirm this by disconnected the drive and trying to boot up.
If it loads the harddrive is likely damaged and will need replacing and file recovery performed on it to get your data back.
If you need help troubleshooting why your computer won’t startup, data recovery, or any type of laptop repair or pc repair in Coventry & Warwickshire, get in touch with us today.