Blue screen problem in ghost win7 installation

Today encountered a notebook reinstallation system, not to mention, U disk start ghost to find a win7x86 gho image restore, take advantage of this time, take a look at the configuration, belongs to Dell inspire old book, model N4050. Ghost restore completed, entered the deployment phase, the driver integration tool installed the driver, reboot, suddenly appeared blue screen, error code is A5. According to the windows error message, initially judged as the problem of ACPI, boot F2 into BIOS, but can not find the option of power supply, had to give up.

Boot F8, safe mode, the last configuration are fruitless, ask the notebook owner, learned that the memory has been changed because of the blurred screen, in view of the machine for set display, I am not sure that the hardware is completely fine. Considering that it may be related to the driver problem, try to change a version of the ghost image, the problem remains. Finally, I had to use the original iso extraction install to install, and the installation went smoothly into the desktop, so I thought: there must be something wrong with the driver integrated by the ghost system. Open the dell technical support page, download the driver installation, restart, everything is fine, the next step is ready to activate, and then open the pony tool activation completed, restart, unfortunately, this time the blue screen, and is the previous repeated error code A5. The chief culprit of all feelings is this activation tool, check on the Internet, this case is not an individual case, because when the pony tool is activated, it will modify the relevant content of bios and brush the slic certificate of oem into the motherboard. Solution: enter PE, open dg, repair mbr, and repair windows boot, restart to return to normal.