Computer crashed. Computer specialist restored drive. now cannot boot windows. Used restore disk. Did not work. computer boots dos screen then shuts down. boots again then shuts down.

No bootable device means the system cannot boot from where ever you are trying to boot. If you have something in the CD Drive other than a Repair Disc or Operating System Disc remove it.

Try booting from your hard drive. Turn off the computer then turn it back on and watch the screen for which key it says to hit to Change the Boot Sequence or Boot Order. Hit that key when you see the message or you will have to start over. Select the Hard Drive as your boot device. If you get a message about an unbootable device then you will need to run the Check Disk Utility. If it boots, then you will need to make a permanent change to the Boot Sequence or Boot Order.

To make a permanent change turn the computer off, then turn it back on and watch the screen for which key it says to hit to get into the Bios or System Setup. When you see the message, hit the key otherwise you will have to reboot and start over. When the Bios or System Setup window opens tab over and Change the Boot Order or Boot Sequence and save your changes.

To run the check disk utility you will need a repair disc or a operating system disc. Put the disc in the cd drive and boot from it. You want to get to the Dos Command Prompt (Black screen with white letters) and type the following command: chkdsk /r
Check disk will run well over an hour or two and you will notice the percentages going from high to low, this is normal. Let it run to completion. Then reboot machine.

If check disk fails to solve your problem you might have to reinstall windows. Try doing a Repair Install that way you don't loose your data, documents, music, pictures, videos or programs.

In windows xp you get to the dos command prompt by selecting R for repair when the options appear.

In Vista and Windows 7 you want to get to the recovery console and look down at the bottom of the window for the Dos Command.

Sounds like you need to run the check disk utiltity but since you don't have a CD Drive, you're up the creek without a paddle. try booting up into Safe Mode and if you get there successfully reboot and see if the normal mode works, if not you can uninstall Microsoft Security Essential in Safe mode. Or you can use System Restore to restore back to a point (date and time) when the system was working ok. Click Start/Programs/Accessories/System Tools/System Restore and select a restore point before you loaded Security Essentials. In Windows 7 just click Start then type System Restore in the search box above the start then look at the returned results and click System Restore.

System Restore does not lose any of your data, documents, music, pictures, videos or programs (unless the programs was installed after the date and time you selected).

To get into safe mode follow the steps below:

Turn off the computer, then hit the power button to turn it back on and immediately start hitting the F8 key repeatedly until you see SAFE MODE. Take the Safe Mode option and let it boot up. Safe Mode will look different to you, the screen will be darker and the icons bigger, this is normal.

To run the check disk utility you will need a repair disc or a operating system disc. Put the disc in the cd drive and boot from it. You want to get to the Dos Command Prompt (Black screen with white letters) and type the following command: chkdsk /r
Check disk will run well over an hour or two and you will notice the percentages going from high to low, this is normal. Let it run to completion. Then reboot machine.

If check disk fails to solve your problem you might have to reinstall windows. Try doing a Repair Install that way you don't loose your data, documents, music, pictures, videos or programs.

In windows xp you get to the dos command prompt by selecting R for repair when the options appear.

In Vista and Windows 7 you want to get to the recovery console and look down at the bottom of the window for the Dos Command.

You can try to get to a dos command prompt or you can see if the system will allow you to boot in Safe Mode to get to the dos command prompt.

Shut your computer all the way down. As soon as you turn it on, start hitting F8 about 3-4 times, that will take you to an advanced options menu. Select "Last known good configuration" and that should work

Just bought Lenovo S10 and so unlucky that window crashed. So have to restore my Lenovo S10 to factory settings. Can’t really find how ot restore to factory settings in Lenovo S10 from the User Manual. So check from google, after many many search, finally found the solution.
For Lenovo S10 to restore to factory settings follow the steps below:-

• Turn off your Lenovo. (i mean shut down and make sure it’s power off)
• Now press on the “One Key Recovery” key at the top of your Keyboard, your Lenovo S10 should boot up. Else hold down the “One Key Recovery” key until it boot up.
  
• Now you may choose “Restore to factory settings” from the screen and proceed for the restoration.
  ** the restoration will first check if your windows files has been corrupted, if yes, then it will restore it to the original state and no restore is required. else it will continue with the restoration

Will the computer start and boot up at all? You said you did a restore.

If it will, you may be able to insert your backup disk after the computer boots and use Windows Explorer to view and copy your files back on to the hard drive.

If the computer won't boot, you can reinstall Windows and after it boots then try to use Windows Explorer to see if you can retrieve the files.

You will have to put a Windows DVD in and boot on that and do a "Repair" install, if that will not work, you will have to do a complete format and reinstall Windows.
But try the below first if you can.
1. Restart the computer.

2. Repeatedly tap the F8 key until you see the Advanced Boot Option Screen.

3. Select Repair Your Computerand hit Enter.

4. Select your country >> OK.

5. On the System Recovery Options Screen select Restore Application.

6. Follow the on-screen instructions.

8. When prompted, select on "Full Factory Recovery"

9. Select Next >> Yes.

10. After a couple of minutes the recovery will be completed. Check to see if your PC will perform a Factory reinstall from a "Recovery partition" usually accessed via CTRL F10, or just F10 or F12 Check your manual, as if this is available it will restore your PC to a "From the factory state"
BTW, your hard drive may be ruined you may need to get a new one. Then reinstall Windows from DVD.

Hia,

try to boot your computer in safe mode. when computer starts, press F11/F12 key to get this option otherwise you can find this from computer manual or from internet as per your model/brand of PC. also you can try to boot computer only on command promt option, might be this way it will allow you to go on to your hard drive C and then you can copy your restore disk files by dos commands to external hard drive or CD/DVD. also you can copy your data before you wiped out everything and restore system.

if nothing works then get ultimate boot cd from internet, burn on empty disk and boot computer from there. this will definatley lets you in and you can copy all data and restore disk. make sure, you setup boot order as boot from CD and computer will boot from CD directly.

let me know if you stuck soemwhere or any issues.

Thanks.

Apurva

what problem.
all you said is MAfee disk is bad

1. Log on as administrator or as a member of the Administrators group.
2. Click Start, click Run, type compmgmt.msc, and then click OK.
3. In the console tree, click Disk Management. The Disk Management window appears.
4. you should see the maxor disk (unallowcated)
   
5. right click & format it