I'm using ideapad s100....
what happened is i experienced some black screen issue in the startup which lead to the computer asking for system repair for which i did,... but after that, my computer is not detecting any wireless network. When I download the latest driver from lenovo for which i thought the problem is the driver, it was successfully installed but still the issue was not resolved and it also didn't appear in the device manager. I do system restore but still the problem is there and it also restores my previous black screen problem

..... Internet cable works with the laptop and only the wifi is the problem.
When i run the Quick Start OS of lenovo, the wifi is working there...... so i was wondering which has the problem, The Windows 7 OS?
also when i press the Fn+F5 key while in the windows 7 OS, which will show the wireless adapters, only the bluetooth appears in which before, it shows both bluetooth and wifi....
I'm planning to factory restore this laptop if i really didn't find a solution, but i'm not sure if this will solve the issue because the system restore didn't help at all.
Any suggestions? thanks in advance