My laptop was purchased in 2001 configured with i5 2nd Generation, 8+2 GB RAM. I started having issues when the keyboard gives random inputs and the battery is dead. It still works good on linux and Windows 7. I couldn’t do anything on terminal when the keyboard gives random inputs.
My wife purchased a laptop recently configured with i7 8th Generation, 8 GB RAM. I added an SSD and additional 8 GB RAM and it runs a lot faster than my previous laptop i.e., the boot time is lesser than 20 seconds. She uses windows as primary operating system and I use Linux as primary.
I used to have it in dual boot mode, but it makes difficult to reboot between different OS. We have to save the unsaved works, which becomes complicated.