About a month ago, i upgraded my internet to be unlimited. After this upgrade, my lenovo laptop was able to connect to it for about a day. Then, it suddenly stopped sencing its existence after a day or so. This continued for about a month and i got my internet back for about a week, now i have no internet again. This is making schoolwork difficult and all other devices connect just fine it is only my laptop.
My Wi-Fi connection settings don't display any Wi-Fi connection and there are no settings for my Wi-Fi only Ethernet and VPN. I have a Lenovo 80FY windows 8 Laptop
I have a small lens and some batteries. I have an old lenovo windows 7 laptop with a dvd player. I could take out the laser diode from there. So is there any other parts of a laser pointer that i might need other than the diode, lens, and fuel supply?
I have a gaming laptop, it is a Lenovo Y40-80, the specs are:
8GB RAM
1TB of disk
Intel Core i7
The graphics card is a AMD Radeon R9 M275
I want to buy Black Ops 3, but I don't know if my laptop can handle it, and will it run in low, medium, or high settings?
A few weeks ago we got a new router and with that meant a new network key. All the devices in the house connected to the new network fine accept for my laptop. When I enter the network key it says it is wrong but when I enter the old key it connects with limited access and continues to try and configure all the way but never does. I have tried pretty much everything. I deleted all networks from the computers stored memory and reset the router numerous times but my computer will only accept the old password and never fully connects. I know it's not the wireless card either because it connects fine to other networks when I take it with me. Windows diagnostics isn't any help either because it just tells me to reset the network which I have done at least twenty times by now. Why isn't it recognizing the new network key like all the other devices, why is it still recognizing the old network key, and what can't do to fix this?
Added (1). Update: I figured it out. I needed to update my drivers. So if you are reading this and are having the same problem you may need to update your drivers. Specifically those drivers dealing with network connection.
I tried the F11 method but it did not work, is there any other ways of resetting it? Its says on the box Lenovo G50-45, Model name 80E3, I'm sorry I don't know much about computers so I don't really know how to specify it. I wanna reset it to factory settings.Is there any thing else I can try besides the F11 method? I would say the OS but I don't know what it is.
I've changed the boot priority order. I can enter the setup (F2) and Multi Boot (F12). No changes that I have made worked. The last thing I did was a Windows update. It gave me some error message about not being able to complete it. Then restarted. Haven't been able to do anything since. 
Can a laptop with Networking and Data Link Protocol as Bluetooth connect IEEE 802.11b/g/n Wi-Fi devices?
Added (1). Hi everyone,
I came across this used Lenovo Thinkpad T420s laptop on Ebay that I want to buy, but while reading the description I noticed that on that of the Networking, the seller listed Networking Type as Bluetooth and Data Link Protocol as Bluetooth too and I can't find any information about IEEE 802.11b/g/n Wi-Fi connectivity etc.
Now I want to know if this Laptop can connect to router Wi-Fi or other Wi-Fi network devices that does not have bluetooth or can Wi-Fi network adapter be installed?
Recently i bought a headphone with mic on it and it has two jacks, one for audio and one for mic. When i plug-in the audio jack it gives a notification and it works fine, but when i plugin the mic… Nothing happens. Nothing in device manager, no notification… I opened the Realtek Audio Manager and at analog there's only one jack port displayed (See attached picture upper right). Does this mean my mic jack is broken or i need to set something?
I tried with another mic, no luck. And i also tried my headset mic on another laptop (which doesn't have realtek) and it works fine. 
http:// /ip/Lenovo-Black-15.6-Ideapad-100-80QQ00…
It has a i3-5020U Processor, 8GB Memory, 500GB Hard Drive and Windows 10 thanks