Suggest me good laptop between these two?

I'm clg student I have found this Asus X554LD-XX616D (i3 4th Gen/ 2GB/ 500GB/ 1GB Garph/ Free DOS) but there's no description whether the ram size can be upgraded or not(I want to add 4 gb ram) if yes suggest me between

Lenovo G50-70 59-442243 (Ci3/ 4GB/ 1TB/ DOS) [after adding 4gb ram tot-8gb] with Intel HD graphics 4400 and

previous Asus one[after adding 4gb ram tot-6gb] with 1 GB DDR3 nvidia Girlfriend 820M

I mainly use this for programming.
software's I will be using android studio, blender, unity 3d., Photoshop, eclipse…

New Lenovo Z70 running slowly?

About a week or two ago I bought a Lenovo Z70 laptop. It has an intel I7 core and 16gb of ram. Recently (the past few days) it has actually been seeming pretty slow performing basic tasks, like opening a video or audio file. Seeing as it's a newish computer with a relatively clean hard drive, a good core, and plenty of ram this surprised me when it started happening. I do download a lot of stuff off of the internet, so I was thinking maybe I got a virus of some kind ( even though I do have an antivirus program). Does anyone have suggestions on how I could clean up/speed up my computer?

Will the speed of my laptop increase if I upgrade the following into it

Hi, I have a lenovo laptop with i3 processor 64 bit. Currently it is working on windows 7 OS with 2 gb ram and 500 gb harddrive. I'm planning to upgrade it to windows 8 with 8 gb ram and 1tb harddisk. So will it increase the speed of my laptop? Is it safe to upgrade these things? My use of laptop js generally playing games, making collage projects and using internet. Currently the speed of my laptop is very slow and so many games or other softwares are not run on it. Suggestions are appreciated.

Computer won't connect to the Wi-Fi?

I have a Lenovo laptop with windows 8 and I have recently got a new Wi-Fi because my mom switched providers and I used to have no problem and now that we have the new Wi-Fi it won't connect to it and it says that I'm still connected to the old one even though we don't have it. When I try to connect it to my new Wi-Fi it says the settings saved on my computer for the network do not match the requirement of the network. I don't know what to do, Help!

Is 8GB RAM enough for music production?

I had a netbook with 2gb RAM which was just awfull for production but i could still manage, but now i'm getting into heavier production so i bought a Lenovo G50-30 with 4gb ram, but it still kinda distorts after adding alot of instruments which also depends on what instruments i use, i usually use about 8 vst plugins (Nexus) but it still kinda distorts and lags. I'm technically using 2.5gb ram out of the 3.89 usable so would an 8gb ram upgrade be enough as its all the laptop will take, when i can afford ill but an expensive laptop which can take 32 gb Ram but this is all i have for the time being.

How to make my laptop less laggy to play games like skyrim?

I got a lenovo G50-30 with an intel HD graphics driver and 4gb ram. But the game is still far too laggy, iS there a way i can download a different driver or use more ram, as it says i'm only using 2.59 gb of the 3.89 usable. Even though skyrim requires 2gb its still playable but far too laggy to not get annoyed by it. I'm planning to upgrade the ram to 8gb when i can but for the time being how can i make the laptop faster for playing games and music production etc.