Roll Back Windows to an Earlier State
Windows includes a couple of backup tools to revert your PC to a previous, working condition: Restore Points and device driver rollback. These are most helpful if your system becomes unstable and you need to reset it to an earlier point where it was reliable. Unlike Shadow Copy, these don't let you selectively browse back; they're essentially all-or-nothing switches.
Locate Vista's Restore Points by opening Control Panel, System and Maintenance, System. In the left side, click Advanced system settings. Choose the System Protection tab. Click System Restore.
Windows automatically creates a restore point each day, and before making significant changes to the system. You can also create a restore point manuallly by selecting a disk under the System Protection tab of the System Properties control panel and then clicking Create. If you want to revert to the most recent restore point, click Next; otherwise, click the Choose a different restore point radio button. Choose the date and time, and click Next. Click Finish to begin the process.
In Windows XP, open Accessories, System Tools, System Restore. You should see Restore my computer to an earlier time. Click Next, and pick a date to which the system will revert. Click Next twice to begin the process.
The Device Manager also allows you to undo a single software driver. In XP or Vista, double-click a hardware item, click the Driver tab, and choose Roll Back Driver to revert to an earlier state. This option is most useful if you have problems immediately after updating a driver.
Image a Disk
Once you have a new system working perfectly, consider saving a full copy of the drive as a disk image. That way, if you have to reinstall everything, the image file will already contain your applications and Windows updates--in other words, you can restore your OS and applications in one swoop, and then restore all of your documents from a recent backup.
Many backup and disk suites include imaging software. True Image Home 11 handles nearly any imaging need, with encryption options and even incremental images, so you can keep appending the image without starting over.
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