google redirect problem?

on typing (into google address bar) stanislauslibrary.org, instead of getting the library, the page goes to ww38.stanislauslibrary.org, which turns into a weird search and a lot of stuff having nothing to do with search...i downloaded eset online scanner, it found no infected files...would malwarebytes do any better? other than that, if this is a rootkit problem, i really need help...

about the computer...
HP Compaq
OS edition Windows 10 Home
Version 1703
OS build 15063.483
Product build 00326-00758-63795 AAOEM
Installed RAM 8GB (7.87GB usable)
System type 64 bit OS, x64-based processor

all help gratefully appreciated...