Power Button Blinking. Won't turn on?

I have a Lenovo Flex 15 with Intel Core i5 and 6 Gigs of RAM.
The power button blinks constantly but the computer itself refuses to turn on.
I can't access BIOS.

My computer changed from 64 bit to 32 bit?

My computer changed from 64 bit to 32 bit?

Added (1). I have a Lenovo G580 and here are the specs:
My computer changed from 64 bit to 32 bit

The other day I went to the shop because I needed my laptop repaired (It wouldn't go past the lenovo screen after I powered the computer on) . Surprisingly the one time I turned it on there, it worked but I decided to let them repair it anyway. When I got it back, it had windows 7 professional instead of my previous windows 8.1 and it changed from 64 bit to 32 bit. They formatted my computer. What caused the 32bit change?

My laptop colors are messed up. Can I fix this?

I have a Lenovo Y-40 laptop, which is great, but the colors are a bit faded/light. Seeing as I do a lot of graphic design work, it's a bit hard to deal with. My customers are usually unsatisfied with the colors, which leads to less business. Is there a way I can change the colors to normal? Xoxo.

How long will this laptop last?

It's a 2011 Lenovo T520, I bought it refurbished. I'm only expecting 2 to 3 years. What do you think?

Added (1). http://www.amazon.com/...ge_o00_s00

Added (2). I got a really good deal + free extra RAM, so I didn't mind buying it.

Added (3). I will be using it for programming and music editing.

I'm about to buy Lenovo G50-80 laptop?

It has 5th gen i5 processor,4GB DDR3 RAM, 2GB AMD Radeon R5 230M graphics card and 1TB HDD. Is this suitable for the following softwares?
1.AutoCAD Standalone (Basic and Architecture versions)
2.SketchUp Pro
3.Autodesk 3DS max
4.Rhino with grasshopper
5.Lumion renderer
6.Vray plugin for SketchUp, 3DS Max

Can i play GTA 4 on these laptops? Lenovo G5070 acer E1?

Hello could you tell me which laptop will support GTA 4 from the below ones?
Lenovo G5070 Acer E1 or HP15R dell inspiron 3452
Please answer if there are any other laptops of lenovo or acer or dell. It should also not be too costly.

Reinstalling sound driver?

I need to reinstall my lenovo laptop B570e (windows 8.1) sound driver but i can't find one
what can i do?