I also a problem with a Google blank page pops up at start ups and I've also gone to the google sear to no avail.
After right clicking on the blank Google window properties, the properties windows open up with Protocol: unknown protocol, Type: File, Connection: Not Encrypted, Zone: my computer - Protected Mode: Off
Size: 6766 bytes
Cerfificates Tab: This type of document does not have a security certificate.
Did it come with a recovery disc or recovery partition on the HDD ?? -- If so best thing to do is reformat the HDD partition that the OS is on and reset it to the factory condition (that way you get rid of all the old owners misc files and programs and can start fresh.)