Common methods for recovering WINDOWS failures (2)

Windows 2000, Windows XP and Windows 2003 have this feature, it will be the last valid setting Start your computer. When

If you make changes to your computer can not start Windows, or just worried about changes made will be problems, this feature is very useful.

Let's take a closer look at the mechanism of "the most recent correct configuration".

The Windows startup process might use three control groups: ControlSet001, ControlSet002, and CurrentControlSet, all of which have the same child structure. The boot computer is typically booted using the settings in CurrentControlSet. If the startup is successful once, it copies the data from CurrentControlSet and ControlSet001 into ControlSet002. During system operation, if a new driver is installed or the configuration is changed, the changes are written to CurrentControlSet and ControlSet001. If there is a problem with the next boot, select “Last Known Good Configuration> will command Windows XP to use the data in ControlSet002, which represents the state of the system when it was last started correctly. There is an extreme case: if you have "correctly configured the last time" and made configuration changes again, the new changes still fail because WIN XP has already set up that stable, working control group (formerly known as “ What happened when the last successful start) rolled back a rung and caused the correct configuration to be lost? Don't worry, Windows XP has already taken into account, when using the "last time the correct configuration" to boot the system, WIN XP will create a new control group sub-item ControlSet003, in case you have to use it again. In addition, any changes made to other registry keys cannot be restored. For example, after installing SP1, you cannot use the "Start Windows" function with the latest correct configuration to undo the installation of Windows XP SP1.

For example: A PC with Windows XP is equipped with a scanner and a printer. When the user goes online, the latest printer driver is downloaded and the driver is installed. The problem occurs when the computer is restarted in the afternoon. STOP.IRQL_NOT_LESS_OR_EQUAL” prompt, can not boot to the desktop, restart or this prompt, find the relevant information to learn "STOP.IRQL_NOT_LESS_OR_EQUAL"; generally caused by incompatible hardware drivers, of course, there are other reasons. First of all, anti-virus has no effect. Use the “Recently configured correctly” to restart the computer and the familiar XP desktop appears. The latest drivers are not necessarily the best and most appropriate, and the problem is solved easily using “Last Known Good Configuration”.