Do NOT call 888 842 8034:
This part of a very well organized and vicious SCAM that gives you " fake warning messages, because they just want to trick you out of you your money, but will do nothing help your current situation", and may lead to even worse.
A Google search for the above phone number, will quickly confirm this. ...
In my case, my Computer's Chrome Browser became instantly completely frozen, with alarming (but entirely false), message saying =>
"A serious malfunction has been detected with Windows 10 and yor Chrome ... call this number [above, because] ... without support of [our] certified technician to avoid corruption of your Windows 10 64-bit operating system."