I have been a user since windows 95 till now. All the OS were good for their time may be apart from windows ME. Even windows 7 was a peach. However since upgrading to windows 10 even with i5 and good RAM, it is very slow, slower than a tortoise. Only if your hard disk is a flash drive go for windows 10, else you will suffocate from its slowness. I also have a 2015 macbook air and mac mini, which are so fast, I never use my windows 10 desktop or HP laptop loaded with windows 10, unless I want to search for some old files. Also with windows 10 microsoft has cleverly cutdown on admin privileges and ability to tweak the settings to our needs. Sick OS, RIP microsoft.