It's a Lenovo G550.
I ran chkdsk on C:/ yesterday and nothing.
Downloaded ultimate boot cd and will play with it.
Meanwhile, backed everything up of value (I hope).
Also noticed I have a program...

Hi, thanks for your reply.
OK, so it sounds like a new drive or new laptop is the solution?
Such a pain - I can't even remember where I got half the software installed on there.
Sounds like time...

Hi,
A few weeks ago I upgraded to W10 from W7 on my Lenovo laptop.
The laptop was about 3.5 years old, a little slow but generally worked fine.
The install process seemed to work ok, but since...