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Utilities & Operating Systems

From driver downloads to registry cleaners, CNET Download.com features all the latest utilities and drivers. Whether you're looking for FTP clients, compression utilities, or software to back up your hard drive, CNET Download.com has you covered. See all 9,245 in this category.

for the week of: July 05Downloads
  1. 1.
    Advanced SystemCare Free

    Diagnostic Software639,508

  2. 2.
    WinRAR

    File Compression305,955

  3. 3.
    VersionTracker Pro

    System Utilities160,792

  4. 4.
    WinZip

    File Compression124,604

  5. Manage and share your photos.
  6. 5.
    Smart Defrag

    System Utilities60,651

  7. 6.
    Glary Utilities

    System Utilities60,369

  8. 7.
    Advanced SystemCare Pro

    Diagnostic Software47,602

  9. Create stunning Web sites either for fun or for your professional needs.
  10. 8.
    CCleaner

    Diagnostic Software46,845

  11. 9.
    Auslogics Disk Defrag

    System Utilities37,866

  12. 10.
    Wise Registry Cleaner

    Diagnostic Software29,911

See all most popular software

  1. Reduce multiple passwords to one single item.
Release date
  1. Driver Magician Lite Jul 05

    Backup Software

  2. Aloaha PDF Suite Jul 05

    System Utilities

  3. Final Uninstaller Jul 05

    File Management

  4. iCopy - Simple photocopier Jul 05

    System Utilities

  5. Dupli Find Jul 05

    Diagnostic Software

  6. Flash Renamer Jul 05

    File Management

  7. New Folder Wizard Jul 05

    File Management

  8. SuperLauncher Jul 05

    System Utilities

  9. HDD Observer Jul 04

    System Utilities

  10. TreeSize Free Jul 04

    File Management

See all new releases

  1. 1.
    WinZip

    Zip and unzip your files quickly to conserve disk space and greatly reduce e-mail transmission time.

  2. 2.
    WinRAR

    Manage RAR and ZIP archives.

  3. 3.
    FreeRAM XP Pro

    Increase your system performance by cleaning the content of your RAM.

  4. 4.
    Auslogics Disk Defrag

    Defragment your disks and improve computer performance and stability.

  5. 5.
    Ashampoo WinOptimizer

    Speed up searches on your hard drive and optimize overall system performance.

  6. 6.
    Smart Defrag

    Defrag your hard drive in the background automatically.

  7. 7.
    Diskeeper

    Defragment PCs and servers in real time, with zero overhead, to maximize system performance.

  8. 8.
    TuneUp Utilities 2009

    Increase performance, free up disk space, and solve PC problems.

  9. 9.
    System Mechanic

    Speed up your Internet connection, find and clean junk and obsolete files, and clear your cache.

  10. 10.
    Revo Uninstaller

    Uninstall unwanted and even broken applications accurately.

See all editor's picks

from the download blog

Opera widgets for the math and science whiz

Posted by Don Reisinger on Jul 01, 2009
The Opera browser is filled with some neat widgets. And some of the best of those widgets are designed specifically for those who love math and science.
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an introduction to Utilities & Operating Systems

Have you ever added a TV tuner card to your computer, only to have the DVD drive stop working? Maybe you've tried to install software and gotten an error message such as "The file foofah.dll is missing or damaged." The only time most people will need to deal with a driver is when something goes awry. Essentially, a driver is a piece of software that communicates the special needs of a hardware device or software application to an operating system. Windows comes with most of the drivers you need, but sometimes plugging in a new device--such as a digital camera or printer--will trigger a search for drivers. If the maker of your device doesn't offer drivers on its Web site, try searching our library for the name of the device or corrupted DLL.

This category is also the home of popular programs such as the top-rated SmartFTP Client, which made our list of the best free utilities. Installing and uninstalling software, deleting files, and other daily tasks can take a toll on your computer's performance. To test how well your PC is running, try a benchmarking program such as SANDRA Lite. Cleaning out the dead wood with a system optimizer such as Ace Utilities or System Mechanic will straighten out some Registry problems, improve system speed, and free up disk space. Don't forget to back up your data regularly with something like Second Copy so you can replace any files you regret erasing, such as the driver for your nVidia ForceWare Graphics card.

File-compression tools include the classic WinZip and the newcomer WinRAR, which are both excellent shareware products that provide lots of free functionality. Among the wide variety of software within Tools & Utilities, you'll find bookmark managers such as Bookmark Buddy, download managers such as Download Accelerator Plus, file-sharing tools such as LimeWire or Morpheus, and search tools such as Google Desktop.