Cant Install Messenger 2009 or 2011 - I got many errors, including: hr:0x80070643

Hi, Im J.P., I need your help

I have a huge problem with Messenger. I cant install the 2009 or 2011 version.

The situation:

Time ago I had the Messenger 2009 and all worked perfectly but I wanted to try the latest version (Messenger 2011). With the program "Your Uninstaller" I tried to uninstall the Messenger 2009 but I got an error that I dont remember. The program "Your Uninstaller" is a software that, when you finish to uninstall a program, Your Uninstaller search for the left registry key and delete them to keep the registry in good health. Well, I got an error when I uninstalled Messenger 2009 but I accept to delete the left registry keys via Your Uninstaller. After that, all my problems started: when I tried to install the Messenger 2011 I got an error hr:0x80070643.

After that, I tried to install the Messenger 2009 again but I got this errors:

- Microsoft Application Error Reporting: aborted:0x80004004
- Microsoft Visual Studio Runtime: aborted:0x80004004
- Windows live upload tool: aborted:0x80004004
- Windows live sign-in assistant: failed_prior_task:0x80004004
- Installer: failed_prior_task:0x8004004
- Microsoft Choice Guard: failed_prior_task:0x80004004
- Windows live communications platform could not open key: UNKNOWN\Components\9ADA8EA9BDDCBA\940E57139A9FD3A4 F891CAF90B54411D. Verify that you have sufficient access to that key, or contact your support personnel. hr:0x80070643

What can I do? I tried alot of things but I cant make it works. I cant try a earlier Restoration Point because this happened some months ago. Any help is appreciated. Sorry for my english, is not my native language. Thanks in advanced.

J.P.

Hi, my name is Lenny and I'm having trouble finding a newsgroup on Windows Live Messenger. I'm supposed to search for and subscribe to a newsgroup that contains articles about Windows Live Messenger for my homework

Have you tried the MSDN Forums?