Upgrading to the latest or later version of an operating system is a common practice for Microsoft Windows users. Up-gradation is generally performed to take advantages of added features in the newer version. Though, you upgrade the operating system for good, but in some situations it might prove damaging for your system. Sometimes, after upgrading the operating system, your computer might not start and may make all of your mission critical and valuable files inaccessible. This behavior of Microsoft Windows computer results into file loss and require windows hard drive recovery to be resolved.
After upgrading the Windows operating system, when you attempt to start your computer, you might come across the below given error message:
“C:\Winnt\System32\autoexec.nt The system file is not suitable for running MS-DOS and Microsoft Windows applications. Choose 'Close' to terminate the application”
When this error message occurs, you have to close all the applications that you are trying to open.
Grounds of the issue
You might encounter this problem due to missing or corrupt Config.nt, Autoexec.nt and Command.com files of Microsoft Windows operating system.
When this situation takes place, you can not start any of the applications and sometimes your system does not even boot up. Due to this behavior, you might come across serious problems and fall in need of file recovery.
Resolution
As stated above, this problem generally occurs due to missing or lost system files. In such situations, the operating system can not successfully complete the boot operation and this condition occurs. To sort out this problem, repair the operating system with the help of bootable disk of relevant Windows version.
In case if repair process can not help you to solve the issue, you need to format the hard drive and reinstall the operating system. This process will replace the damaged operating system and system files. Although, this method is able to resolve most of such issues, but also has a downside. It deletes all of the files from your hard drive and cause serious file loss situations.
In such cases, you are required to go for hard drive recovery software. These are effective and powerful third party applications, which are capable of effectively scanning the affected hard drive and retrieve all of the missing files. These software have self-descriptive and graphical user interface to allow easy recovery.