Lenovo C100 Lenovo 3000 C100 Series User Guide V2.0 - Page 25

4.1 Restoring the System The system can develop problems due to erroneous operation or the installation of additional software. If software problems develop in the originally installed software, you can restore the system by using system backup and restoration features. Note: The existing system settings will change after restoration. Check the settings of the restored system to ensure they match settings that may be critical to your needs. Use the following procedure to restore the software to a known functional level: 1. Click Start → All Programs → Accessories → System Tools → System Restore. 2. Choose either the recommended restore point, or select a different recovery time from the pop-up box. Choose the latest date when the system was running properly. Click Next to continue. 3. The system will start restoration. When all processes run to completion, the system displays a message informing you that the restore operation has completed successfully. 4.2 Backup and Restore For security purposes, you can back up the system status before you install additional software, or otherwise modify system settings. To back up the system status, do the following: 1. Click Start → All Programs → Maintenance → Backup and Restore. 2. Select the location for your backup. Click Next and follow the instructions to continue. 4.3 Cleaning Up the Disk Do the following periodically to clean up the disks and possibly enhance your computer's performance: 1. Click Start → All Programs → Accessories → System Tools → Disk Cleanup. 2. Choose the disk you want to clean up. 3. Click the OK button to start the cleanup process. 20 User Guide 31039393_3000 C100_UG_EN_V2.0.in20 20 2009.8.21 2:13:35 PM