HP review: Tech

/I was contacted by a technician yesterday (08/18/26) there were like 3 or 4 guys involved, first guy called, and tolled me that, updates wouldn't install automatically, told him to call me back, I was away from my pc.
2nd guy calls, fixes the pc. a
Then tells something's wrong with my pc's registry, and asked if he could install a registry program...CCLEAN , i declined, But, he pressured into it, saying: that viruses would attack my pc if he didn't, I reluctantly accepted, and sent be to a billing department, and was charged 199.99.
Upon googling the software, I discovered that there is a FREE trial, and $29.95

Another guy tells to pay think it was $399.99 for all my networks

Not sure if this is a scam someone is running or what,
But, something just doesn't seen right.