Dot net 4.2.6 -Installation failed with error code: (0x800B010A), "A certificate chain could not be built to a trusted root authority."

September 27, 2017

Hi on windows 2008 r2 sp1 when you try to install of Dot net 4.2.6 may fail with the below error message: Installation failed with error code: (0x800B010A), "A certificate chain could not be built to a trusted root authority."   According to the CAPI2 event messages inside the log: <CryptRetrieveObjectByUrlWire> <URL scheme="http"> </URL> <Object type="CONTEXT_OID_CERTIFICATE" constant="1"/> <Timeout>PT15S</Timeout> <Flags value="286005" CRYPT_RETRIEVE_MULTIPLE_OBJECTS="true" CRYPT_WIRE_ONLY_RETRIEVAL="true" CRYPT_LDAP_SCOPE_BASE_ONLY_RETRIEVAL="true" CRYPT_OFFLINE_CHECK_RETRIEVAL="true" CRYPT_AIA_RETRIEVAL="true" CRYPT_PROXY_CACHE_RETRIEVAL="true"/> <AdditionalInfo> <Action name="NetworkRetrievalTimeout"> <Error value="5B4">This operation returned because the timeout period expired. </Error>   Resolution :   use the UI provided by the certmgr.msc MMC snap-in to add certificates to the trusted root store. Right-click the Trusted Root Certification Authorities option to display the All Tasks options. The...
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FIM 2010/16 – The request was denied by a certificate manager or CA administrator

September 19, 2017

  when you try to Enroll an Smart Card or Update or Rnew your Smart Card you get the error : The request was denied by a certificate manager or CA administrator. 0x80094014 (-2146877420 CERTSRV_E_ADMIN_DENIED_REQUEST) the resolution :  one of your active directory domain controller is not working (your DS or DNS )   Shmuel h.  
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X-OWA-Error: SDServerErr;Microsoft.Exchange.Services.Core.Types.NonExistentMailboxException

August 29, 2017

  hello what you can do if you receive this error on owa :   ****************************************************** :-( something not work I'm unable to access at the request information. Try late. If problem persist, contact technical support X-OWA-Error: SDServerErr;Microsoft.Exchange.Services.Core.Types.NonExistentMailboxException X-OWA-Version: 15.0.1178.9 X-FEServer: ServerName X-BEServer: ******************************************************* The solution – move user mailbox to another Databasemailbox  Shmuel h.  
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כיצד ניתן לשלוט בהורדת צרופות ולמנוע זליגת מידע – OWA

August 24, 2017

    כאשר משתמשים בארגון עובדים עם OWA) Microsoft Exchange Outlook Web App)  מכל מקום בעולם, סביר להניח שהם משאירים מאחור עותקים של צרופות דואר ששמרו או פתחו במחשבים מהם גלשו לשרות. למעשה, כאשר פותחים צרופה (Attachment) ב OWA נשמר עותק במחיצת המטמון (Cache) של הדפדפן שזמין לגישה עתידית עבור כול אחד עם הרשאות גישה למחיצת המטמון. ניתן לגשת למחיצת הCache במסלולים הבאים בהתאם לגרסת הדפדפן שממנו בוצע הגישה ל OWA : For IE 6,7,9,10,11: Go to Tools, Internet Options, click Settings under Browsing History, and View Files, Sort by type and look for the document; For IE8: Go to Tools, Internet Options, click...
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Find Hidden Certificate

August 21, 2017

when you need to restore old certiface that was installed on your local computer ander current user you should use certutil.exe command instead of using certutil.msc see the different: on certutil.msc you can see that i have only one certificate   using  certutil.exe  command line  -  certutil.exe  -viewstore -user my  you can see the certificate from certutil.msc (Mark with yellow)  and some more ......       Shmuel.h  
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