Windows 10: Cannot start Microsoft 365 due to error messages

I receive the following error message while trying to start Microsoft 365 -- "The code execution cannot proceed because C:\Program Files\Common Files\Microsoft Shared\ClicktoRun\ApiClient.dll was not found. Reinstalling the program may fix this problem." In addition, I get another message, "...\ClicktoRun\VCRuntime140.dll was not found. Reinstalling will fix..." And I got one more. Please help!

:)

 

Windows Update Error Message 0x80070543


Ya Ya Ya, there's over a hundred threads like this, ...

Anyway, started getting this error message a few days ago, and done a lot of searching on this error message, apparently it's not, uncommon.

In particular, the (currently) 4 updates that are being affected are:

• Update for Windows 10 Version 1511 (KB3173428) - Error 0x80070543
• Security Update for Windows 10 Version 1511 (KB3172729) - Error 0x80070543
• Security Update for Adobe Flash Player for Windows 10 Version 1511 (KB3174060) - Error 0x80070543
• Cumulative Update for Windows 10 Version 1511 (KB3176493) - Error 0x80070543

The actions I've taken to date are:

1. Uninstalled firewall program (comodo)
2. Uninstalled anti-virus (Avast)
3. Reset the windows update catalog on local machine.

So the above errors are with the above done.

What other steps should I be taking to resolve the issue?

Below is notations for when I actually add to this thread.

1. Attempted to use the troubleshooter, no dice.

 

Cortana & Office 365 Integration

We are trying to integrate Cortana with our Office 365 subscription, but it never works. Here are the steps we have done:

• Turned on Cortona in the Office 365 Admin portal
• We are using Windows 10 1703 – connected Office 365 service to Cortana

Did the same on windows 10 mobile with no luck, Cortana says its connected to Office 365, but sees no data and we are getting zero errors

We went rough office 365 support first and tried all fo their suggestions, they kicked us over to Windows support which is currently closed.

We are on v1703 with all updates in place, it does not work on Windows 10 desktop or mobile

any ideas? I can give you all steps 365 support had us run through if that will be helpful

Thank you

Doug

 

after 1709 this error: "RtcPalVideoEtwSession" failed to start

Hello,
After the upgrade I am consistently getting this error:

"RtcPalVideoEtwSession" failed to start with the following error: 0xC0000022

Do know it is related to Skype for Business and several posts -- mostly in Microsoft Forums-- suggest uninstalling.

But Control Panel==>Programs and Features does not have Skype for Business listed.

I am running "stand alone" Office 2016 not Office 365 etc.

Stumped.

Thanks in advance for your help.