OK I believe I can see the problem. I will also attach the OTL fix as a text file if you are unable to copy it on the sick system
Warning This fix is only relevant for this system and no other, using on another computer may cause problems
Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot
Run OTL
[*]Under the Custom Scans/Fixes box at the bottom, paste in the following
https://dl.dropbox.com/u/73555776/OTL_Fix.GIF
:Commands
[CREATERESTOREPOINT]
:OTL
SRV - [2014/01/14 21:04:29 | 001,771,544 | ---- | M] (AVG Secure Search) [Auto | Running] -- C:\Program Files\Common Files\AVG Secure Search\vToolbarUpdater\17.3.0\ToolbarUpdater.exe -- (vToolbarUpdater17.3.0)
SRV - [2013/09/06 12:29:38 | 000,235,216 | ---- | M] (McAfee, Inc.) [On_Demand | Stopped] -- C:\Program Files\McAfee Security Scan\3.8.130\McCHSvc.exe -- (McComponentHostService)
DRV - [2013/11/20 15:43:41 | 000,037,664 | ---- | M] (AVG Technologies) [Kernel | System | Running] -- C:\Windows\System32\drivers\avgtpx86.sys -- (avgtp)
IE - HKU\S-1-5-21-3334157229-1843940417-2705372315-1000\..\SearchScopes\{70D46D94-BF1E-45ED-B567-48701376298E}: "URL" = http://127.0.0.1:4664/search&s=F4Ohn6C-M-oPlcU5DzTcfMvYbJw?q={searchTerms}
IE - HKU\S-1-5-21-3334157229-1843940417-2705372315-1000\..\SearchScopes\{95B7759C-8C7F-4BF1-B163-73684A933233}: "URL" = http://isearch.avg.com/search?cid={49C36A2B-0AA1-47D5-A431-23EC18CED411}&mid=95ac9ede46df74924f9140b1d0a2b11e-4e74e30fd1940bb5905c7101d2faeb3f67145431&lang=&ds=&coid=&cmpid=&pr=&d=&v=17.3.0.49&pid=avg&sg=&sap=dsp&q={searchTerms}
IE - HKU\S-1-5-21-3334157229-1843940417-2705372315-1002\..\SearchScopes\{70D46D94-BF1E-45ED-B567-48701376298E}: "URL" = http://127.0.0.1:4664/search&s=wp4geEaPqFbgGrkkgy2vaDNcg6A?q={searchTerms}
FF - HKLM\Software\MozillaPlugins\@avg.com/AVG SiteSafety plugin,version=11.0.0.1,application/x-avg-sitesafety-plugin: C:\Program Files\Common Files\AVG Secure Search\SiteSafetyInstaller\17.3.0\\npsitesafety.dll ()
FF - HKLM\Software\MozillaPlugins\@mcafee.com/McAfeeMssPlugin: C:\Program Files\McAfee Security Scan\3.8.130\npMcAfeeMss.dll (McAfee, Inc.)
[2009/12/22 08:35:06 | 000,000,000 | ---D | M] (AVG Safe Search) -- C:\PROGRAM FILES\AVG\AVG8\FIREFOX
O2 - BHO: (AVG Safe Search) - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - C:\Program Files\AVG\AVG8\avgssie.dll (AVG Technologies CZ, s.r.o.)
O2 - BHO: (no name) - {5C255C8A-E604-49b4-9D64-90988571CECB} - No CLSID value found.
O2 - BHO: (AVG Security Toolbar) - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Program Files\AVG Secure Search\17.3.0.49\AVG Secure Search_toolbar.dll (AVG Secure Search)
O3 - HKLM\..\Toolbar: (no name) - - No CLSID value found.
O3 - HKLM\..\Toolbar: (AVG Security Toolbar) - {95B7759C-8C7F-4BF1-B163-73684A933233} - C:\Program Files\AVG Secure Search\17.3.0.49\AVG Secure Search_toolbar.dll (AVG Secure Search)
O3 - HKLM\..\Toolbar: (no name) - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - No CLSID value found.
O3 - HKU\S-1-5-21-3334157229-1843940417-2705372315-1000\..\Toolbar\WebBrowser: (no name) - {CCC7A320-B3CA-4199-B1A6-9F516DD69829} - No CLSID value found.
O3 - HKU\S-1-5-21-3334157229-1843940417-2705372315-1000\..\Toolbar\WebBrowser: (no name) - {E7DF6BFF-55A5-4EB7-A673-4ED3E9456D39} - No CLSID value found.
O16 - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} http://platformdl.adobe.com/NOS/getPlusPlus/1.6/gp.cab (Reg Error: Key error.)
O16 - DPF: Garmin Communicator Plug-In https://static.garmincdn.com/gcp/ie/2.9.2.0/GarminAxControl.CAB (Reg Error: Key error.)
O18 - Protocol\Handler\linkscanner {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - C:\Program Files\AVG\AVG8\avgpp.dll (AVG Technologies CZ, s.r.o.)
[2010/03/10 17:28:54 | 002,495,592 | ---- | C] (Amazon.com) -- C:\Users\Vic\AmazonMP3Downloader.exe
[2013/04/15 20:13:03 | 000,000,000 | ---D | M] -- C:\Users\Vic\AppData\Roaming\AVG2013
[2013/11/16 17:24:36 | 000,000,000 | ---D | M] -- C:\Users\Vic B\AppData\Roaming\AVG2013
:Files
C:\Program Files\AVG Secure Search
C:\Program Files\Common Files\AVG Secure Search
C:\Program Files\McAfee Security Scan
C:\Program Files\AVG
:Commands
[resethosts]
[emptytemp]
[Reboot]
[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.
If you need to copy the text file across then copy fix.txt to the desktop of the sick computer
Run OTL and press fix, a dialogue will appear asking for the location of fix.txt
Navigate to the copy on the desktop and select it
Press run fix again to execute
On completion of the fix then try to download MCShield, it should now work