How to Fix Windows 7 via Startup Repair or CHKDSK from Command Prompt?

Posted by @Bryce

July 19, 2018

This article presents how to run Windows 7 Startup Repair or CHKDSK from Command Prompt to fix Windows 7 when Windows won’t boot.

Windows 7 won’t boot normally

“I have a Lenovo computer running Windows 7 operating system and it always woks well. But suddenly, I am unable to boot the Windows 7 computer. I don’t want to reinstall Windows 7, which is troublesome. Is there any solution to help me to work out Windows 7 boot failure? Thanks for your help!”

Possible reasons for Windows 7 boot failure

It is not rare to meet Windows 7 not booting problem and this issue can be caused by many factors like damaged system partition, missing system files and so on. And you might receive an error message like “Missing operating system”, “Invalid partition table” or “Bootmgr is missing, etc.

Fix Windows 7 with Startup Repair or CHKDSK from Command Prompt

After you have realized possible reasons for Windows 7 not booting and error message that you can receive, it is time to get to know how to solve this problem without reinstalling.

Fix Windows 7 boot failure via Startup Repair

Startup Repair, one of the recovery tools, which is very helpful when your operating system won’t boot. It can scan your computer and fix missing or corrupted stem files that cause Windows boot failure, so that you can boot your computer normally. Let’s see how to run it.

1. Insert the Windows installation media into your computer.

2. Start your Windows 7 computer and press certain key to enter BIOS to boot from the installation media.

3. Wait for Windows 7 installation files to load. In the first Windows installation screen, click “Repair your computer”.

4. Select your operating system and click “Next”.

5. In the System Recovery Options windows, click “Startup Repair”.

Then Startup Repair will repair startup problem automatically for Windows 7. And the whole process might take a few minutes, please wait patiently.

Fix Windows 7 by accessing Command Prompt to run CHKDSK

In many cases, Windows 7 can be fixed by Startup Repair. But there are chances that you might encounter with Windows 7 Startup Repair loop or get the error message that Startup Repair cannot repair this computer automatically. At this time, you are unable to fix Windows 7 with Startup Repair and you can consider running CHKDSK from Command Prompt by following steps below:

1. In the System Recovery Options window, click “Command Prompt”.

2. In the Command Prompt window, type “chkdsk C: /f/r” and hit “Enter” key.

3. After the process finishing, you can exit from Command Prompt and check whether you can boot Windows 7 computer normally.

PS.: You can also run Bootrec commands from Command Prompt to fix Windows 7.

Why not create system image before Windows not booting?

You can try to run Windows 7 Startup Repair, enter Command Prompt to run CHKDSK and so on to fix Windows 7 boot failure as you don’t want to experience the trouble of reinstalling operating system. But if you had a working system image backup, you can skip these solutions and just restore system from the backup already made to make your computer boot normally.

To backup system flexibly, you can employ professional and powerful backup software – AOMEI Backupper Standard. It can work with Windows 7/8/10, XP and Vista, so that you can use it to protect your computers running different Windows operating system. If you need to use it on Windows Server, you can apply AOMEI Backupper Server. Refer to the following steps to backup system.

Step 1. Free download AOMEI Backupper Standard. Install and run it.

Step 2. In the main interface, click “System Backup” under “Backup” tab. You are also allowed to backup disk or files if you want.

Backup System

Step 3. In this window, you can choose destination path to save your backup.

Select Path

PS.: AOMEI Backupper will select system partition and other system related partition automatically and you don’t need to manfully select partition to backup.

Step 4. You can click “Backup options” to adjust compression level, image splitting and encrypt backup; click “Schedule” to do a schedule backup. Then, click “Start Backup” to perform this operation.

After this operation, you can create a bootable media using AOMEI Backupper, thus you can boot your computer from the bootable media to restore system when you fail to boot Windows.