In most of the cases, troubleshooting Windows 7 startup is very simple if you know a few Windows troubleshooting tools. XP users will be surprised to see that the GUI based Windows Recovery Environment.
Windows 7 automatically installs the Startup Repair tool onto the operating system partition, so you will always have access to it. After an unsuccessful boot, Windows 7 automatically loads Startup repair, which scans your PC for issues, automatically repairs when possible, and then reboots as normal.
If your Windows 7 is not booting, you can follow the instructions given below to fix the problem. But before proceeding make sure that all system hardware is working fine.
1. Turn on your PC, insert the Windows 7 installation DVD and then reboot your machine. If you have created bootable Windows 7 USB flash drive, insert it to start the process.
2. Press any key when prompted to do so. Once you press any key, you will see Windows is loading files.
3. Once you see Install Windows screen, select your language, keyboard or input panel, and time format and finally click Next button to proceed to the next step.
4. In the following screen, you will see Install now button along with repair your computer option at the bottom of the screen. Click Repair your computer option to see System Recovery options box.
5. Select your operating system also select Use recovery tools that can help fix problems.
6. Under System Recovery options, you will see tools such as Startup Repair, System Restore, Windows Complete PC Restore, Windows Memory Diagnostic Tool, and Command Prompt.
How to use these tools:
Startup Repair- This option allows you fix missing or damaged system files that might prevent Windows from starting correctly. In most of the cases, you will be able to boot Windows 7 with this option. Startup Repair will check your system for problems, and if found Startup Repair will fix them automatically. Your computer might restart several times during this process.
System Restore- You can use this feature to restore your Windows 7 to an earlier state. Note that you can use this feature only if you haven't disabled System Restore. System Restore uses restore points to return your system files and settings to an earlier point in time without affecting personal files.
System Image Recovery- As you may know, Windows 7 lets you restore your computer using a system image backup that you created earlier. If you would like to restore your computer using system image backup (if you have created one), use this feature.
Windows Memory Diagnostic Tool- Scans your computer's memory for errors. It might take several minutes for the tool to finish checking your computer's memory.
Command Prompt- Advanced users can use Command Prompt to perform recovery-related operations and also run other command line tools for diagnosing and troubleshooting problems. Here is list of helpful commands that help you fix boot problems: