Windows 10: my labtop

ok im am trying to watch my dvr on my labtop from the hdmi what do I did its not working

:)

 

Buying a Labtop

Alright I am going to buy a labtop as I am no longer playing video games, but I am want something that has sick graphics as far as looking glossy and HD goodness.

So I found the labtop i want i think, a dell xps M1530

But What i am confused about is the different options to pick for the screen

The most expensive one states:
High Resolution, glossy widescreen 15.4 inch LED LCD (1440x900) & 2.0 M

the 50 dollar less one states :
Full Hi Definition, glossy widescreen 15.4 inch LCD (1920x1200) & 2.0 M

Now the LED one, it says High Resolution, but does not say HD, Which one will look more Glossy and HD, you know how the labtops look in stores how real they look. what is the major difference?

Which one would you pick for a more realistic picture for HD backrounds and movies/pictures

 

Extremely slow labtop

I have a dell labtop with windows 10, at least I think it has windows 10, it literally updated itself, and today I literally spent an hour and a half of my life waiting for it to load. It’s so slow that the taskbar icons don’t show up for about 5 mins.
I tried to put it in safe mode but I can’t even access the security window thing by pressing CTRL + ALT + DELETE. It poped up once, and when I tried to do the steps, it just froze... Any help? I had to post this from my phone because my labtop won’t load.

 

Safely sold window 10 labtop

Hey I just sold my window 10 laptop to other last week. Before I sold, I have reset my labtop. Anyways, I later found that the laptop still in my device list in microsoft account webpage (Microsoft account | Sign In or Create Your Account Today – Microsoft).
So, I removed it (after I have sold my labtop). My question is that can the buyer access to my data specifically in my data in onedrive?