Laptop Won't Connect To Wireless Network

i have a compaq presario cq57 notebook pc,windows7 home prem 64 bit)it was called Magicdisk,after trying for the last 3 months to uninstall this program(it would say INSTALL.LOG not found)i even did system restore to earlier setting but it was still on there,but after researching online someone told me to go to the program files in the hard drive and delete it from there,so that is what i did and it did work all program files were gone,now since i have done that 3 days ago i have had some pretty bad issues with my laptop.first it started with it telling me that my hard drive is gonna fail and to back up and a box pops up every 30 mins to remind me of this and every time i restart it says it in the bios and wants me to run a hard drive test but the same person told me not to worry because it is just a part of the 'magicdisk virus' and to just ignore it,so im wondering if this is true...now the next thing that happend 2 days ago my laptop quit connecting the wireless network,all the drivers r there and updated they r in the device manager as fine and working properly,i am connected with the etherport right now i have REALTEK RTL8188CE 802.11 B/G/N WIFI ADAPTER when i run diagnostics it says that i have a problem with the driver but i cant seem to find one and the only place my network shows up is in the LAN internet access REALTEK PCIe FAMILY CONTROLLER..it wont let me find a network manually it doesnt show up in manage wireless networks,if i disable the LAN then its not on here at all and it wont detect it so i am completely stumped as to what the problem is..i have tried it all!! uninstalling,reinstalling drivers,unplugging the router(although all my other wifi things work),restored to earlier date,changing channels,u name it i have probably tried it!!but like i said im new at this so there the possibility i wasnt doin it right.