Lenovo (with Windows 8.1) laptop not starting up correctly?

I have a Lenovo Ideapad Y500 with Windows 8.1 installed on it. I turned on my computer yesterday and it looked normal. I logged in, and the computer loaded. I then clicked the "desktop" tile and when it transfered to the desktop, the screen was gray. After a few seconds the screen loaded, then went gray again, loaded, went gray again, loaded, … It will not stop no matter how long I let it sit. Unless i open the program right when the computer loads (before going into the desktop tile), i can't open any programs. The only thing I've downloaded in the past few weeks other than pdf's and word documents for homework was Bioshock Infinite (off of steam) and that was about 1.5 weeks ago so I'm not sure that if this is due to a corrupted file, which file it could be. I've tried restarting my computer, reinstalling my video drivers, and checking for stuck keys but to no avail. I'm a college student who has online homework due almost every night so it is crucial that my laptop work. I really appreciate any help I can get!

Added (1). Also I've tried loading my computer into safe mode but it won't let me for some reason (i'm assuming it's related to the problem).

Windows 8 lenovo laptop blacl screen? - 1

My windows 8 lenovo laptop u510 the screen is really dim when i put my flash light on the screen i can see that yhe screen is not completely black also it shows that the brightness is max how ever the screen is black when i don't flash my light in it, My laptop isn't upgraded to windows 8.1 yet but i'm upgradig it righy now in case the black screen has anything to do with the upgrade please help would be appreciated, thank you

Laptop screen and fan won't turn on?

I was on my Lenovo Yoga 13 laptop and the fan was suddenly running very fast because I was gaming, then the laptop shut down (Was on flat table surface). When I turn on my laptop, the power light is on; however the screen is black and the fan tries to spin, but does not fully spin and stops. The fan area makes a mechanical noise like the fan is broken. Is that the case and I have to replace the fan or something else?

How to minimize a major Videogame?

I have a laptop for school, and some classes are just too boring, so i would rather play games like Rome 2: Total War, Civ V, etc. When I'm in the game I have to hit Ctrl+Alt+Del to minimize the game. I have a Windows 8 Lenovo p500 touch. Is there a faster way to minimize the game so I don't get caught? A short cut or anything?

Added (1). I have tried multiple ways, like the Windows button, Windows button+m/tab, and nothing has worked.

Feedback on lenovo 59-379534 Laptop?

Has anyone bought Lenovo 59-379534? I'm thinking of buying the Lenovo 59-379534… Its has the following features:

AMD A4-5000
39.6 cm Display
4 GB DDR3 RAM
1 TB Hard Disk
Windows 8
1 GB Graphics

Is it worth buying? Is AMD A4-5000 Quad Core processor ok or should we go for a laptop with inter core i3?

I want a laptop which should have RAM more than 2 GB and HDD more than 500 GB along with upgraded processor… Which should be the best choice considering my requirements?

Please advise…

Best laptop to buy in this?

1.lenovo s510p(59-383309)/4gbram/500gbhdd/corei5/15.6inch/inte
(or)
2.dell inspiron 15-3537(6gbram/750gbhdd/4th corei5/15.6 inch)
which is best option?

Lenovo Thinkpad T540p or E540?

Lenovo Thinkpad T540p specs -
Intel Core i7-4702MQ Processor (6MB Cache, up to 3.20GHz)
15.6" FHD
NVIDIA GeForce GT740M
8 GB RAM
1 TB Hard Drive

Lenovo Thinkpad E540 specs -
Intel Core i7-4702MQ Processor (6MB Cache, up to 3.20GHz)
15.6" FHD
E540 NV N14P-GV2+ Graphics,2GB
8 GB RAM
1 TB Hard Drive

Lenovo NB G580 is it a good laptop?

Knowing if this is a really good laptop i will use it for homework some light games like silent hunter 3, or nfs underground, and video chatting and music and most work would be on Office, it comes with microsoft office word right?

Here are the features:
ProcessorIntel Pentium B960, 2 cores, 2 threads, 2.2 GHz, 2MB L3 cache
Graphics CardVideo Graphics- Intel HD Graphics
Memory4 GB, DDR3, 1333 MHz (1 DIMM x 4GB) Memory
Hard Drive1TB, 5400 rpm Hard Drive
Connectivity10/100M
Communication802.11 b/g/n, 10/100 ethernet
Optical DriveDVD RW
Operating SystemWindows 8
TypeNotebook
Model NoG580 B960

is it a good laptop will it last and is it good quality?

Help choosing laptop please

I have a brochure with 3 deals i don't know which one to pick as they are all more or less the same price
I need the laptop for mostly using office and web browsing, video chatting and watching, music and some light games sometime which is best for me to buy?

1 # Acer V5
Acer V5-573
Notebook
Features: Intel Core i5 + 4GB RAM + 500GB HDD + 64-bit Windows 8.1 Single Language

2 # Lenovo G500
ProcessorIntel® Core™ i3-3120M Processor (3M Cache, 2.50 GHz)
Graphics CardIntegrated Intel HD Graphics
Memory4 GB Memory
Hard Drive500 GB Hard Drive
ConnectivityLenovo BGN
Communication10/100 Ethernet
Optical Drivetray Rambo(dual layer DVD recordable)drive
Operating Systemwindows 8 pro
TypeNotebook

3 # Acer E1
Acer E1-570
Notebook
Features: Intel Core i3 + 4GB RAM + 500GB HDD + 64-bit Windows 8.1 Single Language

I was gonna go with Acer v5 but everyone said it heats up quick and only lasts 2hours and bad things about it so which is best for me to buy and which is best quality and will last? 5 stars to best answer

Added (1). OR 4# Dell inspiron celeron N3521