Some utilities installed in Windows 7 are

Some utilities installed in Windows 7 are:

• 
  Backup. Backup software can run a full backup or an incremental backup. It can be accessed from the Backup and Resource Center on the Control Panel.
  
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  File Manager. File manager is a program that helps you organize and manage the data stored on your disk. In Windows 7, it is called Explorer.
  
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  Disk Cleanup. A disk cleanup program improves system performance and increases storage space by removing files you no longer need. The Disk Cleanup tool can be found under System Tools.
  
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  Disk Defragmentation Program. A disk defragmenter reorganizes data on the disk so that the file pieces are reassembled as one chunk of disk space. The Disk Defragmenter is set to run automatically in Windows 7 but can be changed by selecting System Tools.
  
• 
  File Compression. File compression programs enable you to create archive and compressed files. To Compress a file in Windows 7, right-click it and choose Send To Compressed (zipped) Folder.
  

5. Explain the differences between a full backup and an incremental backup. Have you ever lost important files because you did not back them up? If you have done a backup, did you copy the entire disk or just selected files? When was the last time you performed a backup?

Backup software can run a full backup, which includes all files and data on the entire hard disk, or an incremental backup. In an incremental backup, the backup software copies only those files that have been created or changed since the last backup occurred. In this way, the backup disk always contains an up-to-date copy of all data. Full backups should be made at least once each month. Incremental backups should be made regularly, too—in a business environment, at least once a day.

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