When you attach a new hardware to your system, you need to install a device driver that controls that all the functioning of that particular hardware device. A device driver basically converts the I/O instructions of the operating system that the hardware device can understand. A STOP error message after the installation of a device driver primarily occurs if the driver contains a bug or is incompatible with your system. In most cases of occurrence of STOP error message, the hard drive becomes unmountable making all the data stored in the hard drive inaccessible. To access the data in such situations, an ideal solution is to restore the data from an updated backup. However, if no backup is available or backup falls short to restore the required information, then you will need to use advanced partition recovery software that can recover all the lost information.

Consider a practical scenario, where you encounter the below error message after you attempt to restart your system after installing a new device driver:

“x000000A7: BAD_EXHANDLE”

Data stored in the hard drive becomes inaccessible after the above error message appears. In addition, you encounter the same error message each time you try to restart your system.

Cause:

The root cause for the occurrence of the above error message is installation of a bugged device driver.

Resolution:

To troubleshoot and resolve the above error message and access the data, you will need to follow these measures:

Check whether the installed driver is upgraded or not. Remove the last installed device driver. Select Last Known Good Configuration when you boot your system.

However, if you receive the same error message even after applying all the above measures, then you will need to reinstall Windows. A fresh reinstall of Windows erases all the files and folders saved on the hard drive partition. To recover all the lost data after formatting your hard drive, you will need to opt for efficient Partition Recovery software. Such File Recovery applications use effective scanning algorithms to comprehensively scan and recover your lost data from a formatted hard drive. With highly interactive and intuitive user-interface, these utilities serve as easy-to-understand and recovery centric tools.

Stellar Phoenix Windows Data Recovery is the finest File Recovery software. It provides recovery of lost files and folders from corrupted, deleted, formatted or lost hard drive partitions. The read only software supports 185 varied file types. It is compatible with FAT32, VFAT, NTFS and NTFS5 file systems. The software is designed for Windows 7 (Currently in RC1), Vista, XP, 2003 and 2000.