Problems installing NET Framework on Reinstalled Vista

okay so basically i started out with a 64x version of vista cant remember what type if it was home premium or whatever but i had no end of problems with one of the updates it gave me which eventually led the system to starting up after running 3 particular updates and then being stuck at 0% and restarting in a loop. i had it professionally fixed up and then it worked for a while but the same update happened and it did it again. So i bought a vista 32bit disc instead and installed it, and only problem i had was installing internet which works now thanks to finding a driver. Now the latest problem, is that im having problems installing a Microsoft .NET Framework package. its Microsoft .NET Framework 3.5 that is apparently needed to install certain programmes i use such as heidi eraser for shredding card details that ive entered etc but when it does the installer, it starts fine, then after trying to install, itll crash and say setup failed, uninstalling components. and then i get this error message


[05/21/12,14:28:50] Microsoft .NET Framework 2.0SP1 (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 2.0SP1 (CBS). MSI returned error code 34
[05/21/12,22:27:52] Microsoft .NET Framework 2.0SP1 (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 2.0SP1 (CBS). MSI returned error code 34
[05/21/12,22:28:20] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0SP1 (CBS) is not installed.
[05/21/12,23:29:28] Microsoft .NET Framework 2.0SP1 (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 2.0SP1 (CBS). MSI returned error code 34
[05/22/12,00:16:35] Microsoft .NET Framework 2.0SP1 (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 2.0SP1 (CBS). MSI returned error code 34
[05/22/12,00:16:53] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0SP1 (CBS) is not installed.
[05/22/12,00:18:49] Windows Installer Patch Registration Fix for .NET Framework 3.5 (x86): [2] dlmgr: CDownloadJobBITSImpl::RunToFinish() : BITS job in BG_JOB_STATE_ERROR state.
Context: 5 Error code: -2145844848 Description: No description available.
[05/22/12,12:08:20] Microsoft .NET Framework 2.0SP1 (CBS): [2] Error: Installation failed for component Microsoft .NET Framework 2.0SP1 (CBS). MSI returned error code 34
[05/22/12,12:08:48] WapUI: [2] DepCheck indicates Microsoft .NET Framework 2.0SP1 (CBS) is not installed.


tried installing netframework 2 manually but it says i have net framework 2.0 on my system and when i tried the framework 2.SP1 it says my version of vista isnt compatible with it. what the hecks going on? :/ its also set to download a bunch of windows updates in the bottom corner of my vista but they keep failing. its bugging me a lot as i dont know how to fix this any help would be appreciated! :D

And my computer just apparently tried to install this and failed:

Microsoft .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5 Family Update (KB951847) x86

Download size: 17.1 MB - 55.6 MB

You may need to restart your computer for this update to take effect.

Update type: Important

I got this error code 80073712

Check this out- How to fix - error code 80073712 - windows component store is corrupt - Microsoft Answers

it suggested a scan using cmd to scan for errors and it said 'Windows resource protection found corrupt files but was unable to fix some of them' and i tried reinstalling after to no avail, any other advice? I don't want to have to reinstall vista again.. :/

Richc46 usually tells people to run the SFC /scannow command three times since things may not get fixed the first time.

.net framework 2 and 2 sp1 are not applicable to Vista. 2 sp2 is. http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&id=17981