I downloaded and installed Windows 10 Pro 32 bit.
Occasionally after I start the computer, it boots as usual but then doesn't show the start menu or desktop icons.
After I restart it 2 or 3 times it then works perfectly.
At first I thought it was a graphics card problem, but that doesn't seem to be the case.
My PC is an HP Compaq DC5750 with 2GB RAM; small form factor.