A KERNEL_DATA_INPAGE_ERROR is a blue screen of death error in Windows, caused by a corrupted master boot record (MBR) or a problem with the operating system's memory management. To troubleshoot this issue, it's essential to start by running a thorough diagnostic test on your hard drive using built-in tools like Check Disk (chkdsk). If the issue persists, try booting in safe mode and scan for malware using an anti-virus program. In some cases, resetting the MBR may resolve the problem. You can do this using a Linux live CD or a Windows installation media to rewrite the MBR. Additionally, checking for BIOS updates and ensuring proper RAM configuration can also help resolve KERNEL_DATA_INPAGE_ERROR. If none of these steps work, it's recommended to perform a System Restore to a previous point when your system was functioning correctly, or seek professional assistance from a qualified IT specialist.