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.NET Framework 4 won't install

For some reason I cannot install the .net framework that is needed for a lot of software. I have tried installing it from the Microsoft website directly and through other software installation programs. I just did another attempted install from the Microsoft website and here is my full report:

Please help!

Jakeleber has chosen the best answer to their question. View answer
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Clarification Request
Install message error

In reply to: .NET Framework 4 won't install

If you look in the installation report you can see that there is this error:

[9/22/2012, 18:58:51] Returning IDOK. INSTALLMESSAGE_ERROR [Service 'Windows Presentation Foundation Font Cache' (WPFFontCache_v0400) could not be installed. Verify that you have sufficient privileges to install system services.]

I don't know how I would go about fixing that.

All Answers

Best Answer chosen by Jakeleber

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Possible the most obvious solution -.-

In reply to: .NET Framework 4 won't install

I use Comodo antivirus software which includes a type of 'defense' system for my registry. I just disabled that feature and it installed perfectly fine on the first try.......

Thanks for the help and sorry for the waste of time Silly

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So did you try the old .NET cleaner? Link follows.

In reply to: .NET Framework 4 won't install

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Used cleaner based on suggestions from other threads

In reply to: So did you try the old .NET cleaner? Link follows.

I did use the cleaner in that link based on a suggestion in this thread where the guy seemed to be having the same issue as me.

I also tried installing Windows Installer 4.5 and using it to repair files because of this thread

Forgot to mention that I am running XP Pro SP3

Not sure if this helps but I do have a folder in my "WINDOWS\Microsoft.NET\Framework" directory named "v4.0.30319" which has files in it.

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See above

In reply to: Used cleaner based on suggestions from other threads

I see that the issue of PROTECTION or Antivirus suites was noted. So with that noted, why not delete that folder after you used the cleanup tool?

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