1) By turning on and off, you meant laptop or wifi? Anyways delete your connection from saved networks list, reset your network adapter, then connect to wifi again.
2) Personal suggestion, turn the automatic downloading of updates off (notify only), and download it only when a critical update is available.
Yea, wifi problem is fixed but still windows can not update. yes I already set at notify me from the day I am using this PC, but whenever I click on emblum on the left side of shut down in start menu the installation of 8 update takes place for 5 min with 2 reboots, and this cycle happen again and again.

And whenever I go to go some change on windows update through control panel it shows some awkward UI:
*img845.imageshack.us/img845/9080/daszl.jpg
For this above windows update error I got an answer in microsoft answers but don't know how to apply:
I had this problem for over a year, and it was never related to any language pack install issues. After months of piecing together solutions from various sources it is now fixed! Maybe this will help you. Here are my documented TROUBLESHOOTING STEPS:
1. Downloaded & Ran: Fix WU/Windows6.1-KB947821-v12-x64
Result: Did not complete installation…
X Installer encountered an error: 0x80073afc… The resource loader failed to find MUI file
2. Ran: (System File Checker) CMD: sfc/scannow ‘as Administrator’
Result:“Windows Resource Protection did not find any integrity violations”
3. Downloaded & Ran on a clean boot: MicrosoftFixit.wu.RNP.82263104194361077.2.1.Run 6.14.12
-Issues found: Repair Windows Update components Repair Windows Update components / Windows Update components must be repaired /
-Issues checked: Repair default Windows Update locations / Change Windows Update locations
-6 Repair Windows Update components Fixed
-6 Repair default Windows Update locations Checked
-Default Windows Update data locations have changed / Not Run
-The location where Windows Update stores data has changed and must be repaired
Result: Succeeded
4. Downloaded & Ran: MicrosoftFixit.malware.FISC.82263135317772521.1.1.Run
Result: Succeeded. PROBLEM RESOLVED!