Inspiron 7548 and Windows 10 - - - lots of trouble

I bought a new 7548 from Best Buy, took it home and turned it on.  I followed the setup instructions to the letter and was offered the free upgrade to Windows 10.  I followed the steps and installed the upgrade.  I had problems with video and it ran really slow.  I went into Task Manager and monitored the resources.  At times the disk was 95% busy and I wasn't doing anything.

Keep in mind this is a brand new out of the box laptop. 

I Googled for information and discovered that there were a lot of people with issues upgrading to Win 10 with this laptop.  I am so sorry that I didn't Google it before installing.

After 4 weeks of poor performance and band-aid fixes, I wiped the disk and did a factory restore.  I am extremely pleased with the performance of this laptop with Win 8.  Don't know why they ever said it was compatible with Win 10 - - - - .

I post this just as information for potential users looking to upgrade to Win 10.  I would be very cautious about proceeding in that direction.  I am not looking for fixes and am very happy with Win 8