Bill -
Unless you are offering to diagnose my software and system,
Not hard. Takes about an hour. Windows cannot be fixed. Yah just bin it.
Five minutes to install OpenBSD. 25 minutes to install whatever you use for applications and put your files where they need to be. if even they need reorganized at all. And hour or several more if yah have a lot and the must e moved to new and secure media.
30 minutes to train you on the few visible differences, given stock "eye candy' desktop themes in the GUi include apple and windows lookalike and controls-alikes.
Thereafter its about 5 minutes, twice a year, to install the binary updates of the OS. Applications are updated as a background task:
time pkg_add -u
The "time" utility will then report 20 or 30 wall clock minutes, far less I/O and CPU time, each go..
But work goes on all the while, so not noticed.
Windows users converting would get
delerium tremens, as it is like giving up hard drugs, cold-turkey to not have all the malware, expense, waste of time, and slow and clumsy desktops that make fast and easy things slow and hard!
All an Apple user (already a Unix, just one very badly crippled..) notices is that they have more control buttons and things are no longer so dreadfully slow and clumsy with their gummy old user interface and primitive floppy-disk-derived alleged file storage system.
More seriously, Windows uses have an addiction they CANNOT give up, so I quit bothering them many years ago.
All I expected to ascertain was whether the file size itself was the barrier, then slim it down in stages until it started working, and give you back some numbers to shoot for.
Annnnd .. it looks as if you have gotten there, already!