Before performing a significant software update on a Windows operating system, you want to ensure that the system can be rolled back to its previous working state if the update causes problems. What is the BEST action to take immediately before starting the update to allow for quick system recovery?
Run a full system antivirus scan to ensure the update files are malware-free.
Defragment the hard disk to ensure optimal performance after the update.
Enable System Restore (if it is not already enabled) and create a manual restore point.
Delete all system temporary files to free up disk space before the update.
System Restore uses restore points-snapshots of system files, registry settings, and installed programs-to revert Windows to an earlier state. Manually enabling System Restore (if it is disabled) and creating a restore point just before installing a major update captures a known-good configuration, making it possible to undo the update if it introduces instability. Actions such as defragmenting the disk, deleting temporary files, or running an antivirus scan may be useful maintenance steps, but none of them provide a mechanism to restore the system to an earlier configuration.
Sources:
Microsoft Support, "System Restore," explains that restore points can be created manually before significant events so you can revert the system to that point.
PCWorld, "Repair Your Windows PC With System Restore," recommends creating a restore point "before making changes to the system or installing new software."
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