PC Tuneup keeps erasing Windows 7 boot manager file

Hello Wallace. I kindly request you to follow the instructions on the article http://avgread.me/1PRjWyU to restore the changes made by the AVG PC TuneUp program. Please let us know if the issue persists even after undoing the changes. Thank you.

A month ago I reset some one click options in PC Tuneup. My computer then would not start without a lengthy selection of the hard disk manually.
Saying "boot manager not found".
I learned to replace the boot manager and then after PC Tuneup did it's run later  the boot manager is gone later. I can't figure out which option controls the elimination of the boot manager to turn it off.

Hello Wallace. I kindly request you to follow the instructions on the article http://avgread.me/1PRjWyU to restore the changes made by the AVG PC TuneUp program. Please let us know if the issue persists even after undoing the changes. Thank you.