Lync won't neither install nor uninstall nor being started

When I try to start Lync client, it tries to install some components, then, after a while installation fails saying "error 1719: the windows installer could not be accessed", an then Lync closes.

I have then tried to reinstall it, but installation fails saying "installation not completed" 

I have then tried to unisntall but also in this case  uninstallation fails without a reason, just saying "uninstallation not completed"

Has anyone a clue to solve this issue ?

Thanks

Luciano


June 17th, 2015 8:19am

Hi,

You can resolve the error 1719 by using the methods discussed below:
Method 1:
Start the Windows Installer service
1. Click Start, type Services.msc and press {ENTER}
2. Double-click Windows Installer
3. Set the Startup type of Windows Installer to Manual
4. Click Start to start the service. Note down the error message if any.
5. Click OK.
 
Method 2: Unregister and re-register the Windows Installer to do that follow the steps provided below.
 
1.         Click Start, click Run, type MSIEXEC /UNREGISTER, and then click OK. Even if you
            do this correctly, it may look like nothing occurs.
2.         Click Start, click Run, type MSIEXEC /REGSERVER, and then click OK. Even if you  
            do this correctly, it may look like nothing occurs, or you may briefly see an hourglass.
           After you run this command, the operation is complete.
3.         Try your Windows Installer-based application again.
 
Method 3: Try performing SFC scan on the computer.
 
 1.    Click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator. If you are prompted for  an administrator password or for a confirmation, type the password, or click  Allow
 2.    Type the following command, and then press ENTER:  sfc /scannow  
 [The sfc /scannow command scans all protected system files and replaces incorrect versions with correct Microsoft versions.]

A message will appear stating that 'The system scan will begin'. Be patient because the scan may take some time
 
3.     If any files require a replace SFC will replace them. You may be asked to insert your Win7 DVD for this process to continue
4.     If everything is okay you should, after the scan, see the following message "Windows resource protection did not find any integrity violations"
5.      After the scan has completed, close the command prompt window, restart the computer and check.
Check the below mentioned link for further guidance on SFC scan
 
http://support.microsoft.com/kb/929833 

Best Regards,

Eason Huang

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June 18th, 2015 2:19am

Thank you Eason for your prompt reply. I've tried the first 2 solutions you proposed, but in both cases Lync setup quit unexpectedly without any message. I am now trying SFC. I'll keep you posted.

Thank you again.

Luciano

June 18th, 2015 3:02am

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