|Possible that the harddrive is not running at its normal speed,|
freezing up or slowing down. Or has quit.
My computer took 20 min. to boot the other day.
I was watching the HDD activity indicator light,
and it would remain on, and not rapidly blinking.
Mechanical devices do have problems.
Harddrive manufacturers have software for download for testing HDD.
As for my laptop, I had it off for several months, then took over one hour to get the harddrive cranked up to speed.
Also DUST inside Desktop computers can gum up harddrives.
Is yours clean.????
^^^ Some pictures ^^^