Absolutely agree and sorry if I led anyone down the wrong path before. The WD40 trick on the hub of the fan where the ball barings are lasts for about 48 hours to 5 days max and then it's back to the horrible grinding buzz saw noise on the fan. I'm on the 3rd fan replacement now bought from ebay, hopefully this latest generation of fan will last longer than the 13-16 months the other two fans lasted. very easy to replace. Just remember to clearn out the old thermatic paste with alcocol and a cotton bud maybe betwen the CPU and the copper heatsing rods and then apply some new thermatic paste.
My Sony Vaio Pro 13 is still going strong with Windows 10 and no problems with fan noise with 8 hours use per day for 6 months now .