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defraggers

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PerfectDisk Professional

Optimize drive performance, prevent disk fragmentation, free up space, and improve performance.

3.5 stars Editors' rating on Nov 10, 2014
4.5 stars Users' rating out of 525 reviews
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767,274 total downloads
57 last week
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UltimateDefrag Freeware Edition

Optimize and defrag hard drives.

4 stars Editors' rating on Feb 27, 2009
3.5 stars Users' rating out of 79 reviews
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386,825 total downloads
124 last week
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Registry Doctor

Clean up your Registry and keep your PC running smooth.

3 stars Editors' rating on Feb 27, 2009
3 stars Users' rating out of 9 reviews
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67,862 total downloads
5 last week
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O&O Defrag Free Edition (32-bit)

Defragment your hard disks and optimize your computer's performance.

3 stars Users' rating out of 6 reviews
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41,418 total downloads
32 last week
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O&O Defrag Free Edition (64-bit)

Defragment your hard disks and optimize your computer's performance.

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39,902 total downloads
94 last week
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Memory Defragger

memory monitor & cleaner

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1,010 total downloads
1 last week
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Defragger Source Code

Build your own defragger application.

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669 total downloads
2 last week
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DefragExpress

Do daily defragmenations of your PC in 3 minutes.

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1,776 total downloads
4 last week
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Little Registry Optimizer

Analyze the Windows registry and optimize it.

3 stars Users' rating out of 1 reviews
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1,225 total downloads
1 last week
Article

Three-deal Thursday: 25-cent Android apps, any song for a nickel, and a free defragger

Deals don't get any cheaper than two bits, five cents, and free. Today's your lucky Thursday.

By September 27, 2012

Article

New scam tactic: Fake disk defraggers

The new thing in scareware are defragger scams that falsely claim a computer needs disk errors fixed, experts say.

By December 14, 2010