2009 day after day after day and usually never turn it off. I maybe reboot it once a month. It has been used and abused. Thrown in a non padded briefcase, strapped in, put in the cargo hold of a helicopter many times etc.
The hard drive is starting to make some noise so I am in the process of replacing it with an SSD one.
I find Parallels klunky and am thankful I don’t have to use it much. Not using it much is probably why I have problems with it.
I was forced to buy a PC about a year ago because my bank uses an IBM product called Trusteer that was not Mac OS compatible. That was a disaster. Windows 10 is a mess. The thing crashed, I got the bank to make arrangements for the Mac, put the PC in the closet and forgot about it.
Adding to previous post on this thread. I should also mention I’m a consulting engineer. I make a living WITH a computer not by constantly tinkering with and WORKING ON a computer. I don’t have an IT department, just me.
I had PC’s for years and replaced them about every two years because they just got full of junk and quit. Other people I know do the same thing.
My peers made fun of my “tree hugger, liberal toy etc.” and tried to blame any incompatibility on the Mac. Thing is though, when they were rebooting, arguing with their PC and calling IT for help I was the guy who was doing the work without stopping to fix the PC. The Mac OS just works and the machine is well built. As noted, mine is an early ‘09 model that has had one battery change and needs another.
I've got Trusteer installed on my Mac, provided by my credit union, so I don't know what they were talking about.