Fix “Failed to load operating system” error in Windows 7

Solution 1: Solve bootloader problems

The most common reason for this error is a hard drive or SSD boot zone failure, for example after a system transfer or installing a larger drive in the computer. Therefore, the problem can be solved by restoring the integrity of the required component – ​​one of our authors has already written about how to do this.

Read more: How to format a hard drive with windows

Method 2: Checking the status of the hard drive

The next and most serious cause of the problem in question is a hardware problem with the hard disk drive (HDD in the first place). Therefore, if attempts to repair the bootloader fail, it is worth performing the following steps:

1. 1. Use a bootable rescue media (how to make one is described in the previous method) and select recovery tools.
   2. In these tools, use "Command line"..
   3. When the window appears, enter the command diskpart.
   4. When the utility loads, type list volume.The command will list all available logical partitions, among which you need to find the system partition. To do this, look at the column "Label".: search for a position with the name "Reserved…"below which is clearly the operating system drive. your assigned letter, we will need it for the next step.
   5. Then type exitto exit the interface DISKPART.Then enter the following on the line:

      chkdsk *буква диска с системой*: /f /x /r

      Instead of *буква диска с системой* enter the value from the previous step. Check that the command is spelled correctly and press I went into to continue.

   6. Wait for the utility to check the drive and fix any errors, if found. While running, you may get a message that some of the errors have not been resolved – this indicates a hardware problem with the device. In most cases, the most effective solution is to replace the drive with a new one.

Also, if you run into an issue where the error in question occurs when installing the SSD, the following article should help.

Read more: What to do if your SSD is not recognized in Windows 7?