Hallo Uwe,
jedenfalls vielen Dank für deine Mühe. Aber irgendwie bewegt sich die Sache im Kreis.
Richtig ist: >Ihr habt jetzt beide ein „nicht mehr ordnungsgemäßes / nicht mehr lesbares Archiv“
Aber, es ist nicht möglich, das Archiv in MSH zu starten. Somit scheitern deine Vorschläge (Datenintegrität prüfen, ungenutzten Speicherplatz freigeben).
Beim Versuch MSH mit dem nicht lesbaren Archiv zu starten (danke für den Hinweis zum Starten mit gedrückter Shift-Taste), kommt es zur Fehlermeldung und dann kann man nur mehr beenden.
Immerhin ist der Hinweis auf den Debug-Modus im Startfenster wertvoll. Ich übermittle in der Anlage die Datei und bitte um Entschuldigung, dass ich das so sende (eine Textdatei-Anlagen ist im Chat leider nicht erlaubt). 
P.S. Dumme Frage: Mit meiner Festplattenverschlüsselung (die habe ich mit dem neuen PC installiert und seitdem gibt es den Fehler) kann es nicht zusammenhängen?
Herzlichen Dank für die Hilfe, hoffentlich lässt sich das Problem lösen.
MfG, Martin
$MailStoreDebugLog/2.0
Product Name: MailStore Home
Product Version: 24.3.0.22356
App Build Date: 2024-06-10
App Copyright: Copyright (c) 2005-2024 MailStore Software GmbH
App Description:
App Dir: C:\Program Files (x86)\MailStore\MailStore Home
App File Name: C:\Program Files (x86)\MailStore\MailStore Home\MailStoreHome.exe
App Title: MailStore
Operating System: Windows 10 Enterprise x64
OS Bitness: x64
Process Bitness: x86
Is Mono: False
Is Windows: True
.NET 4 Release Key: 533320
.NET CLR Version: 4.0.30319.42000
Proc Culture: de-DE
Proc UI Culture: de-DE
Machine Name: MM-YOGAL13
User Domain Name: XXX
User Name: xxx.xxx
18:58:22.964 [14] INFO: Opening existing archive at C:_MM\MailStore Home old…
18:58:22.970 [14] INFO: Checking if the archive directory exists…
18:58:22.970 [14] INFO: Acquiring exclusive access to the archive via ‚MailStore.lock‘…
18:58:22.970 [14] INFO: Initializing MailStoreMaster.key.
18:58:22.987 [14] INFO: Windows Event Log: Writing of key file: C:_MM\MailStore Home old\MailStoreMaster.key successfully written.
18:58:23.026 [14] INFO: Opening the master database ‚MailStoreMaster.fdb‘…
18:58:23.026 [14] INFO: Opening database C:_MM\MailStore Home old\MailStoreMaster.fdb
18:58:23.078 [14] INFO: On-disk version: 13.0
18:58:23.078 [14] INFO: Oldest transaction: 66
18:58:23.078 [14] INFO: Oldest active: 67
18:58:23.078 [14] INFO: Next transaction: 67
18:58:23.078 [14] INFO: Checking the product type…
18:58:23.080 [14] INFO: Checking master database version…
18:58:23.081 [14] INFO: Opening all file groups marked as ‚active‘…
18:58:23.081 [14] INFO: Synchronizing the internal file group list…
18:58:23.081 [14] INFO: About to open MailStore Home file group…
18:58:23.083 [14] INFO: Opening file group 1 as ‚DefaultFileGroup‘ (IsCurrent=True, IsReadOnly=False)…
18:58:23.107 [14] INFO: Windows Event Log: Writing of key file: C:_MM\MailStore Home old\MailStoreFileGroup.key successfully written.
18:58:23.108 [14] INFO: Opening database file ‚MailStoreFileGroup.fdb‘…
18:58:23.108 [14] INFO: Opening database C:_MM\MailStore Home old\MailStoreFileGroup.fdb
18:58:23.168 [14] INFO: On-disk version: 13.0
18:58:23.168 [14] INFO: Oldest transaction: 89
18:58:23.168 [14] INFO: Oldest active: 90
18:58:23.168 [14] INFO: Next transaction: 91
18:58:23.170 [14] INFO: Checking database version and upgrading if needed…
18:58:23.191 [14] INFO: Opening content file system at ‚C:_MM\MailStore Home old‘…
18:58:23.191 [14] INFO: Acquiring exclusive access to the archive via ‚MailStoreContent.lock‘…
18:58:23.192 [14] INFO: Recovery system needs upgrade.
18:58:23.193 [14] INFO: Search index needs upgrade.
18:58:23.203 [14] INFO: Acquiring exclusive access to the archive via ‚MailStoreIndex.lock‘…
18:58:23.205 [14] INFO: FileGroupFolderManager.ReInit took 00:00:00.0013276
18:58:23.205 [14] INFO: Opening search indexes…
18:58:23.205 [14] INFO: File group has been opened successfully.
18:58:23.213 [14] INFO: Start setting milestone dbversion.milestone2024.RecoveryRecordsAreOK …
18:58:23.213 [14] INFO: Creating a list of all known file groups…
18:58:23.213 [14] INFO: The file groups metadata list needs to be recreated from master database.
18:58:23.213 [14] INFO: The file groups metadata list has been recreated from master database.
18:58:23.213 [14] INFO: Completing the file group metadata list with live information…
18:58:23.213 [14] INFO: File group metadata list has been updated with live information successfully.
18:58:23.213 [14] INFO: Setting milestone dbversion.milestone2024.RecoveryRecordsAreOK in archive store 1 of 1…
18:58:23.214 [14] INFO: Closing archive…
18:58:23.214 [14] INFO: Closing all open file groups…
18:58:23.214 [14] INFO: Closing file group 1…
18:58:23.214 [14] INFO: Lockfile C:_MM\MailStore Home old\MailStoreContent.lock deleted.
18:58:23.215 [14] INFO: Lockfile C:_MM\MailStore Home old\MailStoreIndex.lock deleted.
18:58:23.215 [14] INFO: Writing statistics of file group 1…
18:58:23.217 [14] INFO: Statistics written successfully.
18:58:23.223 [14] INFO: File group closed successfully.
18:58:23.231 [14] INFO: Closing ‚MailStore.lock‘…
18:58:23.231 [14] INFO: The archive has been closed.
18:58:23.231 [14] INFO: Lockfile C:_MM\MailStore Home old\MailStore.lock deleted.
18:58:23.232 [14] EXCEPTION: MailStore_.Open
System.Security.Cryptography.CryptographicException: Die Zeichenabstände sind ungültig und können nicht entfernt werden.
bei System.Security.Cryptography.CapiSymmetricAlgorithm.DepadBlock(Byte block, Int32 offset, Int32 count)
bei System.Security.Cryptography.CapiSymmetricAlgorithm.TransformFinalBlock(Byte inputBuffer, Int32 inputOffset, Int32 inputCount)
bei System.Security.Cryptography.CryptoStream.Read(Byte buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotlaq.Read(Byte buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotkxt.CopyToEnd(Stream fromStream, Stream toStream)
bei 24_3_0_22356_HOME_xqhjwotmbt.ReadRecoveryProperties()
bei 24_3_0_22356_HOME_xqhjwotmbt.WriteRecoveryProperties(Action1 propertiesCallBack) bei 24_3_0_22356_HOME_xqhjwotlyx.SetGlobalProperty(String name, String value) bei 24_3_0_22356_HOME_xqhjwotmcs.FileGroupSetMilestone2024RecoveryRecordsAreOK() bei 24_3_0_22356_HOME_xqhjwotmcs.InternalOpen(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func
1 getLicenseInfo, Action invalidateLicenseInfo, Action1 reloadWebclientFileSystem, Func
1 getWebClientVersion, Byte masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean creating, Boolean disableHeartbeat)
18:58:23.233 [1] EXCEPTION: HomeApplication.CreateOrOpenDatabase
System.Exception: Die Master-Datenbank in C:_MM\MailStore Home old konnte nicht geöffnet werden. Die Zeichenabstände sind ungültig und können nicht entfernt werden.
bei MailStore.Home.HomeUpgradeProgressDialog.ShowProgressDialog(Int32 minDuration, Action runMethod)
bei MailStore.Home.HomeApplication.InternalOpenExistingDatabase(String path, 24_3_0_22356_HOME_thutfcvpin startType, Byte& masterKeyPassword, Boolean showProgressDialog)
bei MailStore.Home.HomeApplication.CreateOrOpenDatabase(24_3_0_22356_HOME_thutfcvpin startType, Byte& masterKeyPassword)
*** Preserved Stack Trace ***
bei 24_3_0_22356_HOME_xqhjwotmcs.InternalOpen(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean creating, Boolean disableHeartbeat)
bei 24_3_0_22356_HOME_xqhjwotmcs.Open(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean disableHeartbeat)
bei MailStore.Home.HomeApplication.24_3_0_22356_HOME_thutfcvpip.<InternalOpenExistingDatabase>b__0()
bei MailStore.Home.HomeUpgradeProgressDialog.<>c__DisplayClass4_1.<ShowProgressDialog>b__0()
*** Inner Exception ***
System.Security.Cryptography.CryptographicException: Die Zeichenabstände sind ungültig und können nicht entfernt werden.
bei System.Security.Cryptography.CapiSymmetricAlgorithm.DepadBlock(Byte[] block, Int32 offset, Int32 count)
bei System.Security.Cryptography.CapiSymmetricAlgorithm.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount)
bei System.Security.Cryptography.CryptoStream.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotlaq.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotkxt.CopyToEnd(Stream fromStream, Stream toStream)
bei 24_3_0_22356_HOME_xqhjwotmbt.ReadRecoveryProperties()
bei 24_3_0_22356_HOME_xqhjwotmbt.WriteRecoveryProperties(Action`1 propertiesCallBack)
bei 24_3_0_22356_HOME_xqhjwotlyx.SetGlobalProperty(String name, String value)
bei 24_3_0_22356_HOME_xqhjwotmcs.FileGroupSetMilestone2024RecoveryRecordsAreOK()
bei 24_3_0_22356_HOME_xqhjwotmcs.InternalOpen(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean creating, Boolean disableHeartbeat)
*** Preserved Stack Trace ***
bei System.Security.Cryptography.CapiSymmetricAlgorithm.DepadBlock(Byte[] block, Int32 offset, Int32 count)
bei System.Security.Cryptography.CapiSymmetricAlgorithm.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount)
bei System.Security.Cryptography.CryptoStream.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotlaq.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotkxt.CopyToEnd(Stream fromStream, Stream toStream)
bei 24_3_0_22356_HOME_xqhjwotmbt.ReadRecoveryProperties()
bei 24_3_0_22356_HOME_xqhjwotmbt.WriteRecoveryProperties(Action`1 propertiesCallBack)
bei 24_3_0_22356_HOME_xqhjwotlyx.SetGlobalProperty(String name, String value)
bei 24_3_0_22356_HOME_xqhjwotmcs.FileGroupSetMilestone2024RecoveryRecordsAreOK()
bei 24_3_0_22356_HOME_xqhjwotmcs.InternalOpen(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean creating, Boolean disableHeartbeat)
18:58:23.235 [1] EXCEPTION: Caller of MessageDlg.Exception
System.Exception: Die Master-Datenbank in C:_MM\MailStore Home old konnte nicht geöffnet werden. Die Zeichenabstände sind ungültig und können nicht entfernt werden.
bei MailStore.Home.HomeUpgradeProgressDialog.ShowProgressDialog(Int32 minDuration, Action runMethod)
bei MailStore.Home.HomeApplication.InternalOpenExistingDatabase(String path, 24_3_0_22356_HOME_thutfcvpin startType, Byte& masterKeyPassword, Boolean showProgressDialog)
bei MailStore.Home.HomeApplication.CreateOrOpenDatabase(24_3_0_22356_HOME_thutfcvpin startType, Byte& masterKeyPassword)
*** Preserved Stack Trace ***
bei 24_3_0_22356_HOME_xqhjwotmcs.InternalOpen(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean creating, Boolean disableHeartbeat)
bei 24_3_0_22356_HOME_xqhjwotmcs.Open(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean disableHeartbeat)
bei MailStore.Home.HomeApplication.24_3_0_22356_HOME_thutfcvpip.<InternalOpenExistingDatabase>b__0()
bei MailStore.Home.HomeUpgradeProgressDialog.<>c__DisplayClass4_1.<ShowProgressDialog>b__0()
*** Inner Exception ***
System.Security.Cryptography.CryptographicException: Die Zeichenabstände sind ungültig und können nicht entfernt werden.
bei System.Security.Cryptography.CapiSymmetricAlgorithm.DepadBlock(Byte[] block, Int32 offset, Int32 count)
bei System.Security.Cryptography.CapiSymmetricAlgorithm.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount)
bei System.Security.Cryptography.CryptoStream.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotlaq.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotkxt.CopyToEnd(Stream fromStream, Stream toStream)
bei 24_3_0_22356_HOME_xqhjwotmbt.ReadRecoveryProperties()
bei 24_3_0_22356_HOME_xqhjwotmbt.WriteRecoveryProperties(Action`1 propertiesCallBack)
bei 24_3_0_22356_HOME_xqhjwotlyx.SetGlobalProperty(String name, String value)
bei 24_3_0_22356_HOME_xqhjwotmcs.FileGroupSetMilestone2024RecoveryRecordsAreOK()
bei 24_3_0_22356_HOME_xqhjwotmcs.InternalOpen(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean creating, Boolean disableHeartbeat)
*** Preserved Stack Trace ***
bei System.Security.Cryptography.CapiSymmetricAlgorithm.DepadBlock(Byte[] block, Int32 offset, Int32 count)
bei System.Security.Cryptography.CapiSymmetricAlgorithm.TransformFinalBlock(Byte[] inputBuffer, Int32 inputOffset, Int32 inputCount)
bei System.Security.Cryptography.CryptoStream.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotlaq.Read(Byte[] buffer, Int32 offset, Int32 count)
bei 24_3_0_22356_HOME_xqhjwotkxt.CopyToEnd(Stream fromStream, Stream toStream)
bei 24_3_0_22356_HOME_xqhjwotmbt.ReadRecoveryProperties()
bei 24_3_0_22356_HOME_xqhjwotmbt.WriteRecoveryProperties(Action`1 propertiesCallBack)
bei 24_3_0_22356_HOME_xqhjwotlyx.SetGlobalProperty(String name, String value)
bei 24_3_0_22356_HOME_xqhjwotmcs.FileGroupSetMilestone2024RecoveryRecordsAreOK()
bei 24_3_0_22356_HOME_xqhjwotmcs.InternalOpen(String fullPath, ProductType productType, 24_3_0_22356_HOME_xqhjwotmaz auditLogConfiguration, Func`1 getLicenseInfo, Action invalidateLicenseInfo, Action`1 reloadWebclientFileSystem, Func`1 getWebClientVersion, Byte[] masterKeyPassword, String productKey, Boolean skipSynchronizeFileGroups, Boolean creating, Boolean disableHeartbeat)