Lync 2013 Client CA certificate just disappears?

We have a Lync 2013 deployment going on, using a 3rd party Lync Server infrastructure, and Lync 2013 clients on Win7 PC's - the 3rd party has sent us an SSL certificate to install into the Trusted root certification authority store, which we are doing via
group policy. This is all fine, except that, periodically, these Certificate seem to be deleted from the clients certificate store.
can anyone offer us a steer on this certificate disappearing ?
Thanks.

Hi,
Agree with Anthony, it shouldn’t be the issue from Lync server side. Please check if there are any AD group policy to clear certificate from clients periodically.
Best Regards,
Eason Huang
Eason Huang
TechNet Community Support

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    2014/11/24 14:49:11:328::[4844] Running in [UninstallExecutionMode]. Run from TEMP folder at [C:\Users\ADMIN_~1\AppData\Local\Temp\Setup00000214].
    2014/11/24 14:49:11:345::[4844] Loaded resource file [C:\Users\ADMIN_~1\AppData\Local\Temp\Setup00000214\OSETUPUI.DLL] (CultureTag=de-DE).
    2014/11/24 14:49:11:345::[4844] WER element [SuppressModal] is set to value [false]
    2014/11/24 14:49:11:346::[4844] WER element [P1] is set to value [15.0.4569.1503]
    2014/11/24 14:49:11:346::[4844] Loaded Dll : C:\Users\ADMIN_~1\AppData\Local\Temp\Setup00000214\OSETUP.DLL.
    2014/11/24 14:49:11:346::[4844] Catalyst version is : 15.0.4569.1503
    2014/11/24 14:49:11:346::[4844] JobExecutionMode is UninstallExecutionMode.
    2014/11/24 14:49:11:547::[4844] Opening registry key: HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.LYNCENTRY.
    2014/11/24 14:49:11:547::[4844] Opening registry key: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.LYNCENTRY.
    2014/11/24 14:49:11:548::[4844] IsProductTransitionToMModeSafe: An exception was caught, therefore transition to MMode is unsafe for product:
    2014/11/24 14:49:11:548::[4844] Error: Product is not installed, therefore transition to MMode is unsafe for product: LYNCENTRY Type: 27::InstalledProductStateCorrupt.
    2014/11/24 14:49:11:548::[4844] Ensuring the install-state of setup controller files for all Products.
    2014/11/24 14:49:11:548::[4844] Opening registry key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall.
    2014/11/24 14:49:11:549::[4844] Ensuring the install-state of setup controller files for product [LYNC].
    2014/11/24 14:49:11:549::[4844] Opening registry key: HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.LYNC.
    2014/11/24 14:49:11:549::[4844] Opening registry key: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.LYNC.
    2014/11/24 14:49:11:549::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-002A-0407-1000-0000000FF1CE}].
    2014/11/24 14:49:11:549::[4844] Product INSTALLSTATE for ProductCode '{90150000-002A-0407-1000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:11:549::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:13:038::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-002A-0000-1000-0000000FF1CE}].
    2014/11/24 14:49:13:038::[4844] Product INSTALLSTATE for ProductCode '{90150000-002A-0000-1000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:13:038::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:15:639::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-006E-0407-0000-0000000FF1CE}].
    2014/11/24 14:49:15:639::[4844] Product INSTALLSTATE for ProductCode '{90150000-006E-0407-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:15:639::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:18:424::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-001F-0410-0000-0000000FF1CE}].
    2014/11/24 14:49:18:424::[4844] Product INSTALLSTATE for ProductCode '{90150000-001F-0410-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:18:424::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:20:222::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-001F-0407-0000-0000000FF1CE}].
    2014/11/24 14:49:20:222::[4844] Product INSTALLSTATE for ProductCode '{90150000-001F-0407-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:20:222::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:21:766::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-001F-040C-0000-0000000FF1CE}].
    2014/11/24 14:49:21:767::[4844] Product INSTALLSTATE for ProductCode '{90150000-001F-040C-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:21:767::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:23:339::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-001F-0409-0000-0000000FF1CE}].
    2014/11/24 14:49:23:339::[4844] Product INSTALLSTATE for ProductCode '{90150000-001F-0409-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:23:340::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:25:046::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-002C-0407-0000-0000000FF1CE}].
    2014/11/24 14:49:25:047::[4844] Product INSTALLSTATE for ProductCode '{90150000-002C-0407-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:25:048::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:26:619::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-012B-0407-0000-0000000FF1CE}].
    2014/11/24 14:49:26:620::[4844] Product INSTALLSTATE for ProductCode '{90150000-012B-0407-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:26:620::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:28:951::[4844] Ensuring the install-state of setup controller feature[SetupControllerFiles] for product[{90150000-012C-0000-0000-0000000FF1CE}].
    2014/11/24 14:49:28:951::[4844] Product INSTALLSTATE for ProductCode '{90150000-012C-0000-0000-0000000FF1CE}' is '5'.
    2014/11/24 14:49:28:952::[4844] Feature INSTALLSTATE for Feature 'SetupXmlFiles' is '3'.
    2014/11/24 14:49:36:136::[4844] Opening registry key: HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.LYNCENTRY.
    2014/11/24 14:49:36:136::[4844] Opening registry key: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Office15.LYNCENTRY.
    2014/11/24 14:49:36:136::[4844] IsProductTransitionToMModeSafe: An exception was caught, therefore transition to MMode is unsafe for product:
    2014/11/24 14:49:36:136::[4844] Error: Product is not installed, therefore transition to MMode is unsafe for product: LYNCENTRY Type: 27::InstalledProductStateCorrupt.
    2014/11/24 14:49:36:136::[4844] Not showing message because suppress modal has been set. Title: 'Setupfehler', Message: 'Diese Produktinstallation wurde besch..digt. F..hren Sie Setup erneut von der CD, DVD oder einer anderen urspr..nglichen Installationsquelle aus.'
    2014/11/24 14:49:36:136::[4844] Message returned: 1
    2014/11/24 14:49:36:141::[4844] Error: Catalyst boot time check failed Type: 66::PreReqCheckFailure.
    2014/11/24 14:49:36:141::[4844] Catalyst execution finished: 11/24/2014 14:49:36. Return code: 30066. Exception caught: PreReqCheckFailure.
    2014/11/24 14:49:36:141::[4844] PERF: TickCount=11690621 Name=RunSetup Description=End function
    My next attempt was to look for MSI Files in Windows\Installer and the Uninstall RegKey
    MsiExec.exe /X{90150000-012C-0000-0000-0000000FF1CE} /qn /norestart /L*v
    "c:\windows\log\Microsoft_Lync_2013_Update_KB2817626_x86_0185_Install.LOG"
    MSI (s) (10:4C) [15:10:52:612]: Machine policy value 'DisableUserInstalls' is 0
    MSI (s) (10:4C) [15:10:52:628]: SRSetRestorePoint skipped for this transaction.
    MSI (s) (10:4C) [15:10:52:631]: End dialog not enabled
    MSI (s) (10:4C) [15:10:52:631]: Original package ==> C:\Windows\Installer\bfb379.msi
    MSI (s) (10:4C) [15:10:52:631]: Package we're running from ==> C:\Windows\Installer\bfb379.msi
    MSI (s) (10:4C) [15:10:52:645]: APPCOMPAT: Uninstall Flags override found.
    MSI (s) (10:4C) [15:10:52:645]: APPCOMPAT: Uninstall VersionNT override found.
    MSI (s) (10:4C) [15:10:52:645]: APPCOMPAT: Uninstall ServicePackLevel override found.
    MSI (s) (10:4C) [15:10:52:645]: APPCOMPAT: looking for appcompat database entry with ProductCode '{90150000-012C-0000-0000-0000000FF1CE}'.
    MSI (s) (10:4C) [15:10:52:645]: APPCOMPAT: no matching ProductCode found in database.
    MSI (s) (10:4C) [15:10:52:649]: Opening existing patch 'C:\Windows\Installer\bfb3d2.msp'.
    MSI (s) (10:4C) [15:10:52:650]: Opening existing patch 'C:\Windows\Installer\bfb37a.msp'.
    MSI (s) (10:4C) [15:10:52:650]: Opening existing patch 'C:\Windows\Installer\bfb386.msp'.
    MSI (s) (10:4C) [15:10:52:651]: SequencePatches starts. Product code: {90150000-012C-0000-0000-0000000FF1CE}, Product version: 15.0.4569.1506, Upgrade code: {00150000-012C-0000-0000-0000000FF1CE}, Product language 0
    MSI (s) (10:4C) [15:10:52:652]: Note: 1: 2205 2: 3: MsiPatchMetadata
    MSI (s) (10:4C) [15:10:52:652]: SequencePatches returns success.
    MSI (s) (10:4C) [15:10:52:652]: Final Patch Application Order:
    MSI (s) (10:4C) [15:10:52:652]: {27D7A8D0-8E28-4A2A-A1D4-473E31DF6438} -
    MSI (s) (10:4C) [15:10:52:652]: {73E81413-5A7E-40A3-9BD5-821ADDF30B10} -
    MSI (s) (10:4C) [15:10:52:652]: {D448DFE1-B83E-4394-9484-25563EFBF58D} -
    MSI (s) (10:4C) [15:10:52:652]: Machine policy value 'DisablePatch' is 0
    MSI (s) (10:4C) [15:10:52:652]: Machine policy value 'AllowLockdownPatch' is 0
    MSI (s) (10:4C) [15:10:52:652]: Machine policy value 'DisableLUAPatching' is 0
    MSI (s) (10:4C) [15:10:52:653]: Machine policy value 'DisableFlyWeightPatching' is 0
    MSI (s) (10:4C) [15:10:52:653]: Looking for patch transform: 90006E0401000015.0.4569.1506
    DEBUG: Error 2746: Transform 90006E0401000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0401-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:653]: Skipping validation for patch transform #90006E0401000015.0.4569.1506. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:653]: Looking for patch transform: 90006E0401000015.0.4420.1017
    1: 2746 2: 90006E0401000015.0.4569.1506 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0401-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0401000015.0.4420.1017 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0401-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:654]: Skipping validation for patch transform #90006E0401000015.0.4420.1017. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:654]: Looking for patch transform: 90006E0402000015.0.4481.1005
    1: 2746 2: 90006E0401000015.0.4420.1017 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0401-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0402000015.0.4481.1005 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0402-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:654]: Skipping validation for patch transform #90006E0402000015.0.4481.1005. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:654]: Looking for patch transform: 90006E0402000015.0.4569.1506
    1: 2746 2: 90006E0402000015.0.4481.1005 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0402-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0402000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0402-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:655]: Skipping validation for patch transform #90006E0402000015.0.4569.1506. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:655]: Looking for patch transform: 90006E0402000015.0.4505.1008
    1: 2746 2: 90006E0402000015.0.4569.1506 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0402-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0402000015.0.4505.1008 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0402-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:655]: Skipping validation for patch transform #90006E0402000015.0.4505.1008. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:655]: Looking for patch transform: 90006E0402000015.0.4454.1509
    1: 2746 2: 90006E0402000015.0.4505.1008 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0402-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0402000015.0.4454.1509 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0402-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:655]: Skipping validation for patch transform #90006E0402000015.0.4454.1509. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:655]: Looking for patch transform: 90006E0405000015.0.4481.1005
    1: 2746 2: 90006E0402000015.0.4454.1509 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0402-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0405000015.0.4481.1005 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0405-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:656]: Skipping validation for patch transform #90006E0405000015.0.4481.1005. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:656]: Looking for patch transform: 90006E0405000015.0.4569.1506
    1: 2746 2: 90006E0405000015.0.4481.1005 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0405-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0405000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0405-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:656]: Skipping validation for patch transform #90006E0405000015.0.4569.1506. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:656]: Looking for patch transform: 90006E0405000015.0.4505.1008
    1: 2746 2: 90006E0405000015.0.4569.1506 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0405-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0405000015.0.4505.1008 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0405-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:656]: Skipping validation for patch transform #90006E0405000015.0.4505.1008. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:656]: Looking for patch transform: 90006E0405000015.0.4454.1004
    1: 2746 2: 90006E0405000015.0.4505.1008 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0405-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0405000015.0.4454.1004 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0405-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:657]: Skipping validation for patch transform #90006E0405000015.0.4454.1004. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:657]: Looking for patch transform: 90006E0406000015.0.4481.1005
    1: 2746 2: 90006E0405000015.0.4454.1004 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0405-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0406000015.0.4481.1005 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0406-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:657]: Skipping validation for patch transform #90006E0406000015.0.4481.1005. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:657]: Looking for patch transform: 90006E0406000015.0.4569.1506
    1: 2746 2: 90006E0406000015.0.4481.1005 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0406-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0406000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0406-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:657]: Skipping validation for patch transform #90006E0406000015.0.4569.1506. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:657]: Looking for patch transform: 90006E0406000015.0.4433.1507
    1: 2746 2: 90006E0406000015.0.4569.1506 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0406-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0406000015.0.4433.1507 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0406-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:658]: Skipping validation for patch transform #90006E0406000015.0.4433.1507. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:658]: Looking for patch transform: 90006E0406000015.0.4505.1008
    1: 2746 2: 90006E0406000015.0.4433.1507 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0406-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0406000015.0.4505.1008 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0406-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:658]: Skipping validation for patch transform #90006E0406000015.0.4505.1008. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:658]: Looking for patch transform: 90006E0407000015.0.4569.1506
    1: 2746 2: 90006E0406000015.0.4505.1008 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0406-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0407000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0407-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:658]: Skipping validation for patch transform #90006E0407000015.0.4569.1506. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:658]: Looking for patch transform: 90006E0407000015.0.4420.1017
    1: 2746 2: 90006E0407000015.0.4569.1506 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0407-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0407000015.0.4420.1017 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0407-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:659]: Skipping validation for patch transform #90006E0407000015.0.4420.1017. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:659]: Looking for patch transform: 90006E0408000015.0.4481.1005
    1: 2746 2: 90006E0407000015.0.4420.1017 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0407-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0408000015.0.4481.1005 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0408-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:659]: Skipping validation for patch transform #90006E0408000015.0.4481.1005. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:659]: Looking for patch transform: 90006E0408000015.0.4569.1506
    1: 2746 2: 90006E0408000015.0.4481.1005 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0408-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0408000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0408-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:660]: Skipping validation for patch transform #90006E0408000015.0.4569.1506. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:660]: Looking for patch transform: 90006E0408000015.0.4505.1008
    1: 2746 2: 90006E0408000015.0.4569.1506 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0408-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0408000015.0.4505.1008 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0408-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:660]: Skipping validation for patch transform #90006E0408000015.0.4505.1008. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:660]: Looking for patch transform: 90006E0408000015.0.4454.1004
    1: 2746 2: 90006E0408000015.0.4505.1008 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0408-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0408000015.0.4454.1004 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0408-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:660]: Skipping validation for patch transform #90006E0408000015.0.4454.1004. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:660]: Looking for patch transform: 90006E0409000015.0.4569.1506
    1: 2746 2: 90006E0408000015.0.4454.1004 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0408-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0409000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0409-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:661]: Skipping validation for patch transform #90006E0409000015.0.4569.1506. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:661]: Looking for patch transform: 90006E0409000015.0.4420.1017
    1: 2746 2: 90006E0409000015.0.4569.1506 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0409-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0409000015.0.4420.1017 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0409-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000FF1CE}.
    MSI (s) (10:4C) [15:10:52:661]: Skipping validation for patch transform #90006E0409000015.0.4420.1017. Will not apply because previous transform was invalid
    MSI (s) (10:4C) [15:10:52:661]: Looking for patch transform: 90006E0C0A000015.0.4569.1506
    1: 2746 2: 90006E0409000015.0.4420.1017 3: C:\Windows\Installer\bfb379.msi 4: {90150000-006E-0409-0000-0000000FF1CE} 5: {90150000-012C-0000-0000-0000000FF1CE}
    DEBUG: Error 2746: Transform 90006E0C0A000015.0.4569.1506 invalid for package C:\Windows\Installer\bfb379.msi. Expected product {90150000-006E-0C0A-0000-0000000FF1CE}, found product {90150000-012C-0000-0000-0000000
    MSI (s) (10:20) [15:16:59:072]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:072]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:072]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:072]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:072]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:072]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:073]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:073]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:073]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:073]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:073]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:073]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:073]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:074]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:074]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:074]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:074]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:075]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:075]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:075]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:075]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:075]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:075]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:075]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:075]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:075]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:075]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:076]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:076]: Transforming table Error.
    MSI (s) (10:20) [15:16:59:076]: Note: 1: 2262 2: Error 3: -2147287038
    MSI (s) (10:20) [15:16:59:076]: Produkt: Microsoft Lync 2013 -- Das Entfernen ist fehlgeschlagen.
    MSI (s) (10:20) [15:16:59:077]: Das Produkt wurde durch Windows Installer entfernt. Produktname: Microsoft Lync 2013. Produktversion: 15.0.4569.1506. Produktsprache: 0. Hersteller: Microsoft Corporation. Erfolg- bzw. Fehlerstatus der Deinstallation: 1603.
    MSI (s) (10:20) [15:16:59:079]: Attempting to delete file C:\Windows\Installer\bfb5a2.mst
    MSI (s) (10:20) [15:16:59:085]: Deferring clean up of packages/files, if any exist
    MSI (s) (10:20) [15:16:59:085]: Attempting to delete file C:\Windows\Installer\bfb5a2.mst
    MSI (s) (10:20) [15:16:59:085]: Unable to delete the file outside of the engine. LastError = 2
    MSI (s) (10:20) [15:16:59:085]: MainEngineThread is returning 1603
    MSI (s) (10:4C) [15:16:59:089]: RESTART MANAGER: Session closed.
    MSI (s) (10:4C) [15:16:59:089]: No System Restore sequence number for this installation.
    === Protokollierung beendet: 24.11.2014 15:16:59 ===
    MSI (s) (10:4C) [15:16:59:090]: User policy value 'DisableRollback' is 0
    MSI (s) (10:4C) [15:16:59:090]: Machine policy value 'DisableRollback' is 0
    MSI (s) (10:4C) [15:16:59:090]: Incrementing counter to disable shutdown. Counter after increment: 0

    2014/11/24
    14:49:36:136::[4844]
    Error: Product
    is not installed, therefore transition to
    MMode is unsafe
    for product: LYNCENTRY
    Type: 27::InstalledProductStateCorrupt.
    2014/11/24
    14:49:36:136::[4844]
    Not showing message because suppress modal has been
    set.  Title:
    'Setupfehler', Message:
    'Diese Produktinstallation wurde besch..digt. F..hren Sie Setup erneut von der CD, DVD oder einer anderen urspr..nglichen Installationsquelle aus.'
    From the snippet of the log, it appears that the product installation has been corrupted. Probably, try to repair it from Control Panel first and then test the command again?
    Also, is it Microsoft Lync Basic 2013?
    Regards,
    Ethan Hua
    TechNet Community Support
    It's recommended to download and install
    Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
    programs.

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