– Install your chosen PST repair tool (run as Administrator on Windows).
– Before any repair, copy the corrupted PST file to a different drive. Never work on the only copy. pst repair tool
However, PST files are notoriously fragile. They are susceptible to corruption due to software crashes, improper shutdowns, oversized data, hard drive bad sectors, or even virus attacks. When a PST file becomes corrupt, the result is panic: missing emails, broken calendar entries, "Unknown Error" messages, or Outlook refusing to open altogether. – Install your chosen PST repair tool (run
– Click "Browse" or "Add File." If the file is huge (over 20GB), ensure the tool supports it. hard drive bad sectors