Content Problems like system crashes, sudden shutdowns, or profile issues can corrupt the OST file, causing Outlook to display sync errors or lose access to your data. Although Outlook lets you recreate the file, doing so may result in the loss of any unsynced changes. You can usually repair a damaged .pst file using file repair software, but you might even be able to fix it using MS Outlook’s built-in capabilities. Like any type of data file, it’s possible for a .pst file to get corrupte...