“I have a laptop with Windows 7 installed. Today it suddenly froze while I was working. So I turned off it, but when I tried to turn it on, it doesn’t work. How to repair Windows 7 from another computer? Any suggestions would be appreciated in advance!”
The cause of Windows corrupted
If you encounter the problem that the computer cannot boot successfully or receive error message like Windows Boot Manager Boot Failed. You may be puzzled about why Windows corrupted. The common reason are as follows:
1. Switching the machine incorrectly, or the voltage is unstable (such as frequent forced shutdown, no UPS, etc.)
2. The hard disk is subject to vibration when reading and writing data, especially strong vibration.
3. Frequently compressing the hard disk.
4. The hard disk is not well cooled, resulting in too high a temperature during operation.
5. The usage environment is too bad.
If your Windows is corrupted, you have to repair MBR for your Windows. Don’t know how to do this operation? Look through the following part to find the answer.
How to repair Windows?
If you want to repair Windows, you can try the following solutions to complete this operation.
Solution 1. Windows built-in tool
Windows provide users a built-in tool - bootrec.exe.tool. You can use it to repair the MBR if you encounter the problem Windows boot failed. The specific steps are below:
1. Press F8 to go to the Windows Recovery Menu while booting Windows 10 system.
2. After that, choose “Troubleshoot” > “Advanced options” to get into “Automatic Repair” menu.
3. Then, click command prompt to use Bootrec.exe tool. And input the following commands, and run them one by one:
bootsect /nt60 SYS or bootsect /nt60 ALL
Solution 2. Repair windows with another computer
If you are not familiar with the command prompt, you can turn to a third party software to repair Windows with another computer. Here I highly recommend you AOMEI Partition Assistant - a magical third party partition manager which provides you many powerful functions like Make Bootable Media and Rebuild MBR. You can download this tool in a normally working computer, and create a WinPE bootable media to boot up your corrupted PC, then rebuild MBR easily in Windows 10/8/7, Windows XP, as well as Windows Vista. The following example will show you the specific steps of repairing Windows 10 with another computer:
First of all, connect a blank USB to a working computer and make sure it can be detected.
Step 1. Download, install and run AOMEI Partition Assistant, click “Make Bootable Media” at the left side bar. And click “Next” to continue.
Step 2. In the pop-up window, select “USB Boot Device” and click “Proceed”.
After that, boot your corrupted Windows 10 Computer from the bootable media. AOMEI Partition Assistant will automatic run on the desktop then.
Step 3. Right click the system disk and select “Rebuild MBR”.
Step 4. In the next window, set the type of MBR for the current OS. (Choose a proper MBR type according to your operating system.) Then click “OK”.
Step 5. After that, click “Apply” on the toolbar to commit Rebuild MBR operation.
Till now, you can successfully repair Windows with another computer. Besides Create Bootable Media and Rebuild MBR, AOMEI Partition Assistant also provides you many other powerful functions like Resize/Delete/Create Partition, Partition Copy, Disk Copy, Migrate OS to SSD and so on. If you want to format the file system of USB, AOMEI Partition Assistant can help you too. If you want to enjoy more advanced functions like Allocated Free Space or , you can upgrade to AOMEI Partition Assistant.