There is an old bug that has been re-discovered, and it is causing havoc to potentially any Windows PC running OSes earlier than the Windows 10.
The old bug can bring your PC to its knees when you visit malicious websites, click links on emails, or just load any ads from an otherwise safe website. As it works, the bug exploits the weakness in how the NTFS driver handles the special file naming system; in this case, the $MF name, one of the special metadata files that the Windows’ NTFS filesystem uses.
This file is usually hidden away from the users and other software. However, it looks like if it is part of the directory named ‘c:#MFT123′ Windows automatically locks the file, never to release it again. That causes part of the Windows systems files to be inaccessible, and the user gets the blue screen followed by force reboot of their PC.
This problem can also be caused locally. Unfortunately, it can also be caused remotely with a malicious intent if the $MFT is used in an URL. Although some browsers do block malformed URL automatically, Microsoft’s Internet …read more
Read more here:: Oh Boy, just about any Website or Ad can crash Windows 7 PCs