All caps are not needed – it makes the narrative more difficult to read.
SmartPCFixer is a registry cleaner/optimizer. Such programs are not recommended by nor supported by Microsoft. Do you have “backups” of all changes made by PCFixer?
Suggest you seek assistance and advice from SmartPCFixer or you may need to restore or reset your computer. Before doing so you should carefully review the following to determine what option (if any) you wish to follow: http://windows.microsoft.com/en-us/windows-10/windows-10-recovery-options
Or you may wish to seek assistance from a professional computer repair tech.
You might want to read:
Microsoft support policy for the use of registry cleaning utilities
http://support.microsoft.com/kb/2563254
https://blog.malwarebytes.org/social-engineering/2015/06/digital-snake-oil/
Why you should not use Registry Cleaners and Optimization Tools
http://www.howtogeek.com/162683/pc-cleaning-apps-are-a-scam-heres-why-and-how-to-speed-up-your-pc/
Good luck…