Cant Install Windows Live - error code 0x80070643

[Tuireann]

Recently i got the mandatory message about Windows Live Messenger, about how we must upgrade. Ive been tryin to do so for some time, unsuccessfully.

When i download the installer, it begins, I choose what I want to install, it begins, gets to the end, then tells me an error has occurred.

The error code is 0x80070643.

Can anyone please help me. I use windows Vista 32bit.

Thank you thank you thank you.

[HappyAndyK]

Check this : Error Code 0x80070643 : Cannot install Windows Live Messenger 9 or other Windows Live Applications

[greentech]

Try this to fix it (and it worked) was to go to
Start>Run, type 'cmd' and then enter each of these one at a time at the
command prompt (hit 'enter' after each one if needed):

regsvr32 wuapi.dll
regsvr32 wuaueng.dll
regsvr32 atl.dll
regsvr32 wucltui.dll
regsvr32 wups.dll
run some registry cleaner (reginout) to fix up ur registry errors
It also fixes an issue where you keep getting messages from the security
center saying automatic updates are off when the automatic update window says
they are on.

---------- Post added at 09:11 AM ---------- Previous post was at 09:09 AM ----------

and uninstall all the silverlight softwares and reinstall Silverlight SDk first then install Silverlight Tools

[greentech]

you may have error in registry, because windows live many problems based on registry, download registry cleaner may solve ur issue

[Gazzoid]

If you dont have Revo uninstaller get it,then completely remove it By Using the "Advanced" option (the 1 at the bottom) If windows asks to reboot Dont , and continue to delete all reg entries and any trace if it 1st (MAKE SURE YOU ONLY DELETE THE THICK BLACK TEXT) then use a reg cleaner , reboot, cross your fingers and try again

(MAKE RESTORE POINT FIRST!!!!!)