This tool was recommended in earlier versions to fix errors in Outlook data files (.ost). The OST Integrity Check Tool (scanost.exe) is not included in Outlook 2010 and later versions. Use the OST Integrity Check Tool (Scanost.exe) to check your. When these symptoms occur, or you have other problems synchronizing, the problem might be a corrupted. ost file or from your mailbox after you synchronize your.
You notice that some items such as email messages, appointments, contacts, tasks, journal entries, notes, posted items, and documents are missing from your. The file c:\Users\\AppData\Local\Microsoft\Outlook\ is not an Outlook data file (ost).