System Defragmenter belongs to the classification of rogue software. System Defragmenter will scan your computer automatically and give out a report showing that there are several problems in your computer. To making users believe the fake system analysis report, System Defragmenter will cause various problems by deleting real system files or modifying windows registry.
You must be wondering how System Defragmenter infected your computer. Usually, System Defragmenter is installed by some trojan, which will produce fake error message and recommend a program to fix the errors. Some users may think the error message is produced by windows system. Once you click on the link, System Defragmenter will be downloaded to your system. In a few causes, System Defragmenter is inrtoduced to the compromising computer by malicious codes.
System Defragmenter can run automatically at windows startup. Once started, it will display tremendous error messages no matter when you are about to run a program or delete a file. System Defragmenter will then prompt you to scan your computer. If you try to use System Defragmenter to fix the errors, you will be informed that you have to purchase the program at first. The fact is System Defragmenter is a fake system fixer tool and it can bring no benefit. Its only purpose is to mass up your system and cheat your money.
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