Hi,
Have you tried to perform System Restore from Windows recovery environment?
Disconnect all the external devices (printers, scanner, USB (universal serial bus) drives, etc...) Except mouse and the keyboard and then boot up. If this corrects the issue then add the devices back one at a time until you discover the piece of hardware causing the issue.
Method 1:
Try booting into “Last Known Good Configuration” mode and check if you’re able to resolve the issue.
Refer the links below for more details:
Advanced startup options (including safe mode)
http://windows.microsoft.com/en-US/windows7/Advanced-startup-options-including-safe-mode
Using Last Known Good Configurationhttp://windows.microsoft.com/en-us/windows7/Using-Last-Known-Good-Configuration
Method 2:
Startup Restore from the Windows Recovery Environment (WinRE)
a. Insert the Windows 7 installation disc into the disc drive, and then start the computer.
b. Press a key when the message indicating "Press any key to boot from CD or DVD …". appears.
c. Select a language, a time and currency, and a keyboard or input method, and then click Next.
d. Click Repair your computer.
e. In the System Recovery Options dialog box, choose the drive of your Windows installation and click Next.
f. At the System Recovery Options Dialog Box, click on System Restore.
g. Follow the System Restore Wizard instruction as usual and choose the appropriate restore point.
h. Click Finish to restore the system.
Refer the following link for more information:
http://windows.microsoft.com/en-US/windows7/What-are-the-system-recovery-options-in-Windows-7
To know more about “Startup Repair” visit the following link:
http://windows.microsoft.com/en-us/windows7/Startup-Repair-frequently-asked-questions
Hope this information helps. Reply with the status so that we could help you further.
Hello,
Thank you for your reply,
When I was trying to repair my laptop, I already disconnected all external devices. I suspected corrupted system file as the main problem.
Method 1:
I already used the advanced startup options, but my laptop still cannot boot. After using the command prompt, my laptop showed me a 'Windows boot manager' display and and kept circling in a loop between 'select os' and 'windows boot manager' display
Method 2:
I have already tried your method too. Unfortunately I did not have any restore point on my laptop.
Actually I did not want to re-install my windows, I wanted to save my personal data and I still attempting to look after the solution to repair my laptop. However, I found an option 'Load drivers' in System Recovery Options dialog box. With that option, I can open my computer data. Later I plugged an USB and I can copy my personal data.
Now, I finally resolved my problem by re-installing my windows, because I need my laptop in urgent. anyway thank you very much for you help and information. I really appreciated it!