Try uninstalling yung browser. Tapos install mo ulit.
Kapag ganun pa din, try remove sus na chrome extension.
Check mo din startup programs, baka may unwanted app na gumagana. Isama mo na din yung list of apps, uninstall mo yung questionable na application.
Kapag ganun pa din, try running Microsoft Windows Defender or Malwarebytes. Run Scan.
Pag di pa din, make sure to backup important files - dapat di sila infected (You may want to run Linux Distro from USB tapos backup mo yung files). Reinstall Windows.