System Check is a malicious program which spreads via trojan horse and makes user‘s life impossible with annoying security alerts. System Check imitates computer scans and shows fabricated warning messages that state about computer infections.

For example:
Hard drive clusters are partly damaged. Segment load failure.
Hard drive clusters are partly damaged. Segment load failure.
Critical Error
Hard drive critical error. Start a system diagnostics application to scan your hard disk for errors and performance problems.
Windows – Delayed Write Failed
Failed to save all the components for the file \System32\00004823. The file is corrupted or unreadable. This error may be caused by a PC hardware problem.
Windows detected a hard disk problem
A potential disk failure may cause loss of files, applications and documents stored on the hard disk. Please try not to use this computer until the hard disk is fixed or replaced.
Windows detected a hard disk problem
A potential disk failure may cause loss of files, applications and documents store on the hard disk. It’s highly recommended to scan and solve HDD problems before continue using this PC.
Hard Drive Failure
The system has detected a problem with one or more installed IDE / SATA hard disks. It is recommended that you restart the system.
System Error
An error occurred while reading system files. Run a system diagnostic utility to check your hard disk drive for errors.
Critical Error
Hard drive critical error. Run a system diagnostic utility to check your hard disk drive for errors. Windows can’t find hard disk space. Hard drive error.
Critical Error
Hard drive clusters are partly damaged. Segment load failure.
It will definitely offer you to buy its “full” version which supposedly can delete viruses onto your PC. This is a scam and none of the information should be trusted. Malware can’t detect or terminate legitimate viruses onto your computer and should be avoided. System Check is able to redirect to counterfeit websites that sell the program. Ignore all notifications but use decent anti-spyware program and get rid of System Check upon detection.