[morozov_s_v]

В журнале почему-то нечего не написано про это.
Вот что сама (Microsoft Windows Server Update Services) в пояснении окна ошибки выдает :

System.Security.Cryptography.CryptographicException: Не удалось получить ключ шифрования. ---> System.Security.Cryptography.CryptographicException: Обнаружена ошибка в DPAPI. HRESULT: 0x8007000D
at Microsoft.UpdateServices.Internal.DataProtectionApi.Decrypt(Byte[] toDecrypt, Byte[] entropy, EncryptionLevel level)
at Microsoft.UpdateServices.Internal.EncryptionUtilities.GetEncryptionKeyThread()
--- Конец трассировки внутреннего стека исключений ---
at Microsoft.UpdateServices.Internal.EncryptionUtilities.GetEncryptionKey()
at Microsoft.UpdateServices.Internal.EncryptionUtilities.EncryptString(String stringToEncrypt)
at Microsoft.UpdateServices.Internal.BaseApi.UpdateServerConfiguration.set_ProxyPassword(String value)
at Microsoft.UpdateServices.Internal.BaseApi.UpdateServerConfiguration.SetProxyPassword(String password)
at Administration.Manage.Subscriptions.SubscriptionProxy.SaveProxyValues(XPostHandler& xPostHandler, IUpdateServerConfiguration& newUpdateServerConfiguration)
at Administration.Manage.Subscriptions.SubscriptionProxy.SaveSynchronizationValues(XPostHandler& xPostHandler)
at Administration.Manage.Subscriptions.SubscriptionProxy.ValidateSynchronizationValues(String xPostXml)
at Administration.Manage.Subscriptions.SubscriptionXPost.Page_Load(Object sender, EventArgs e)

at Microsoft.UpdateServices.Internal.EncryptionUtilities.GetEncryptionKey()
at Microsoft.UpdateServices.Internal.EncryptionUtilities.EncryptString(String stringToEncrypt)
at Microsoft.UpdateServices.Internal.BaseApi.UpdateServerConfiguration.set_ProxyPassword(String value)
at Microsoft.UpdateServices.Internal.BaseApi.UpdateServerConfiguration.SetProxyPassword(String password)
at Administration.Manage.Subscriptions.SubscriptionProxy.SaveProxyValues(XPostHandler& xPostHandler, IUpdateServerConfiguration& newUpdateServerConfiguration)
at Administration.Manage.Subscriptions.SubscriptionProxy.SaveSynchronizationValues(XPostHandler& xPostHandler)
at Administration.Manage.Subscriptions.SubscriptionProxy.ValidateSynchronizationValues(String xPostXml)
at Administration.Manage.Subscriptions.SubscriptionXPost.Page_Load(Object sender, EventArgs e)