It is very unlikely that PC HealthBoost has destroyed your laptop. This is probably from something else.
If you check out the VirusTotal scan, you'll see that it is clean with all 44 major antivirus programs, including avast!
Here is a current scan of the file:
https://www.virustotal.com/en/file/046805851cbd0b15ca3dda8e99b5291a3f0d2049e41191fefe9dc0f333b28e51/analysis/avast! also shows as having PCHB whitelisted with avast in June 4, 2013 with customer service rep, Miroslav Jenšík.
They are also regularly monitored through other sources.
They also show contact information here.
Boost Software, INC
75 Arlington St.
Suite 500
Boston, MA 02116
(855) 249-8392