Boot Camp 4.0 won't fully uninstall, Boot Camp 5 fails to install

I haven't found an answer to my issue.

Early 2011 MacBook Pro 13"

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System Information

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Time of this report: 11/25/2013, 19:51:29

Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130318-1533)

Language: English (Regional Setting: English)

System Manufacturer: Apple Inc.

System Model: MacBookPro8,1

BIOS: Default System BIOS

Processor: Intel(R) Core(TM) i7-2620M CPU @ 2.70GHz (4 CPUs), ~2.7GHz

Memory: 8192MB RAM

Available OS Memory: 8102MB RAM

Page File: 2941MB used, 13262MB available

Windows Dir: C:\Windows

DirectX Version: DirectX 11

DX Setup Parameters: Not found

User DPI Setting: Using System DPI

System DPI Setting: 96 DPI (100 percent)

DWM DPI Scaling: Disabled

DxDiag Version: 6.01.7601.17514 32bit Unicode

I had Boot Camp 4.0 and wanted to upgrade due to wireless performance.

I attempted to uninstall it via Program and Features (appwiz.cpl), it wasn't listed under Boot Camp Services like I expected it to be

I uninstalled it via: http://support.microsoft.com/mats/Program_Install_and_Uninstall

I no loner have the icon in my system tray

I still have the icon in Control Panel that opens up an error "Application not Found" when clicked on

When I try to run the 5.0 Installer I get the following error:

Eventlog Information:

ID: 11708

Product: Boot Camp Services -- Installation failed.

ID: 1033

Windows Installer installed the product. Product Name: Boot Camp Services. Product Version: 5.0.5033. Product Language: 1033. Manufacturer: Apple Inc.. Installation success or error status: 1603.

I don't have the option to reinstall at the moment so I'm trying to get this working without that.

No windows firewall on as well.