Last night windows wanted to update and shut down, all good. This morning, I turned the computer on and the screen started to light up from the bottom. I waited patiently for the computer to boot up and an hour later, I am still waiting for something to happen. I held down the in mutton and the screen went black. The tiny light that shows the hard disc working, started to wink at me.
This has happened after an update before. Is this a common event?
Maybe I should consider a change to apple?

Can any one set me right................. please.

Jim