DW 1520 Driver;Limited Access error

Since 1 week I am facing this problem..My Wifi works for sometime then it stops working and instead gives me a 'LIMITED ACCESS' error..When I disconnect and try to reconnect it, it won't connect. I went in the troubleshooter and chose the network adapter problems and windows would say 'RESOLVING PROBLEM'..and by that windows would UNINSTALL MY WIFI ADAPTER.After that I don't see any Wifi networks in the list..

I went through my Dell Drivers CD and tried to install the DW Driver..But it said something along the lines of "Software not found/not compatible" .

I tried to do a System Restore multiple times,but it failed everytime.Restore wouldn't be successful and would give me some error..So I tried the Dell Factory Image Backup and restored my whole PC to factory settings. Still my Wifi adapter was missing..So i tried installing the adapters from the CD and the dell support website..did not help..after a few restarts and windows update my Wifi came back.

I thought problem solved but it still gives a limited access error after sometime and then I have to restart my PC again so to access my wifi properly..I have to restart again and again..works for a few hours then goes..I am not opening the troubleshooter again because it uninstalls my adapter and then I try to reinstall it and it fails.

My wifi gives me a limited access error,My driver always gives me a Code 10 error- The device cannot be started. And it(driver) keeps appearing, disapperaring and reappearing.

Right now I dont see my Wifi adapter in Drivers at all.

Any help?

DW 1520 driver was installed.

My Hardware Details:
PCI\VEN_14E4&DEV_4353&SUBSYS_000E1028&REV_01
PCI\VEN_14E4&DEV_4353&SUBSYS_000E1028
PCI\VEN_14E4&DEV_4353&CC_028000
PCI\VEN_14E4&DEV_4353&CC_0280

Host Name: PC
OS Name: Microsoft Windows 7 Professional
OS Version: 6.1.7601 Service Pack 1 Build 7601
OS Manufacturer: Microsoft Corporation
OS Configuration: Standalone Workstation
OS Build Type: Multiprocessor Free
Registered Owner: User
Registered Organization: Microsoft

Original Install Date: 12-05-2014, 15:20:56
System Boot Time: 19-05-2014, 22:21:10
System Manufacturer: Dell Inc.
System Model: Latitude E6410
System Type: x64-based PC
Processor(s): 1 Processor(s) Installed.
[01]: Intel64 Family 6 Model 37 Stepping 5 GenuineIntel ~1176 Mhz
BIOS Version: Dell Inc. A16, 05-12-2013
Windows Directory: C:\Windows
System Directory: C:\Windows\system32
Boot Device: \Device\HarddiskVolume2
System Locale: 4009
Input Locale: en-us;English (United States)
Time Zone: (UTC+05:30) Chennai, Kolkata, Mumbai, New Delhi
Total Physical Memory: 4,022 MB
Available Physical Memory: 2,661 MB
Virtual Memory: Max Size: 8,042 MB
Virtual Memory: Available: 6,340 MB
Virtual Memory: In Use: 1,702 MB
Page File Location(s): C:\pagefile.sys
Domain: WORKGROUP
Logon Server: \\PC
Hotfix(s): 196 Hotfix(s) Installed.
[01]: KB2849697
[02]: KB2849696
[03]: KB2841134
[04]: KB2670838
[05]: KB971033
[06]: KB2305420
[07]: KB2393802
[08]: KB2425227
[09]: KB2475792
[10]: KB2479628
[11]: KB2479943
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[28]: KB2532531
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[39]: KB2564958
[40]: KB2570947
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[90]: KB2749655
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[95]: KB2758857
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[100]: KB2773072
[101]: KB2775511
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[103]: KB2785220
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[120]: KB2817183
[121]: KB2820331
[122]: KB2832414
[123]: KB2834140
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[126]: KB2836942
[127]: KB2836943
[128]: KB2839894
[129]: KB2840149
[130]: KB2840631
[131]: KB2843630
[132]: KB2844286
[133]: KB2846960
[134]: KB2847077
[135]: KB2847311
[136]: KB2847927
[137]: KB2849470
[138]: KB2852386
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[140]: KB2855844
[141]: KB2861191
[142]: KB2861698
[143]: KB2861855
[144]: KB2862152
[145]: KB2862330
[146]: KB2862335
[147]: KB2862966
[148]: KB2862973
[149]: KB2863240
[150]: KB2864058
[151]: KB2864202
[152]: KB2868038
[153]: KB2868116
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[160]: KB2876331
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[192]: KB2961851
[193]: KB958488
[194]: KB976902
[195]: KB976932
[196]: KB982018
Network Card(s): 4 NIC(s) Installed.
[01]: DW1520 Wireless-N WLAN Half-Mini Card
Connection Name: Wireless Network Connection
DHCP Enabled: Yes
DHCP Server: 192.168.1.254
IP address(es)
[01]: 192.168.1.68
[02]: fe80::19f6:37e3:ef7d:5085
[02]: Intel(R) 82577LM Gigabit Network Connection
Connection Name: Local Area Connection
Status: Media disconnected
[03]: Bluetooth Device (Personal Area Network)
Connection Name: Bluetooth Network Connection
Status: Media disconnected
[04]: Microsoft Virtual WiFi Miniport Adapter
Connection Name: Wireless Network Connection 4
Status: Media disconnected