Abelssoft HackCheck is a Windows security utility that scans your system for various types of potentially unwanted programs (PUPs), potentially unwanted applications (PUAs), and other suspicious software that could indicate a compromise or security risk. It doesn[SQ]t replace a full antivirus solution but acts as a supplementary tool to identify things a standard antivirus might miss. Think of it as a second opinion scanner.

Here[SQ]s what it typically looks for :

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Suspicious processes:

Running programs that might be acting maliciously or without your knowledge.
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Unauthorized software installations:

Programs installed without your explicit consent.
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System modifications:

Changes to your system settings that could indicate malware activity.
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Registry changes:

Unwanted or suspicious modifications to your Windows Registry.

Important Considerations:

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Not a replacement for antivirus:

HackCheck is not a full-fledged antivirus program. It[SQ]s designed to complement, not replace, your primary antivirus software. It focuses on detection of potentially unwanted software, rather than actively preventing or removing viruses.
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False positives are possible:

Like any security tool, it might occasionally flag legitimate programs as suspicious. Carefully review any flagged items before taking action.
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Limited functionality in the free version:

Abelssoft often offers a free version with limited scanning capabilities. The full version usually provides more comprehensive scanning and features.

In short, Abelssoft HackCheck is a tool to help you identify potential security issues on your Windows system, but it[SQ]s not a standalone solution for complete protection. You still need a robust antivirus program for comprehensive security.