laptop keeps freezing randomly

last day i deleted the file name degen.exe which was using like 100% of my cpu nd after that my laptop keeps freezing randomly plz help
Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8.1 Single Language, 64 bit
Processor: Intel(R) Core(TM) i5-3230M CPU @ 2.60GHz, Intel64 Family 6 Model 58 Stepping 9
Processor Count: 4
RAM: 6029 Mb
Graphics Card: Intel(R) HD Graphics 4000, -1984 Mb
Hard Drives: C: Total - 464472 MB, Free - 388318 MB; D: Total - 249999 MB, Free - 109389 MB; E: Total - 213695 MB, Free - 110755 MB;
Motherboard: SAMSUNG ELECTRONICS CO., LTD., NP370R5E-S05IN
Antivirus: Windows Defender, Disabled