IBM Notes throws Error 1028 during NSF to PST conversion — what could be causing this

If IBM Notes throws Error 1028 while converting NSF to PST, it usually signifies that your computer doesn't have enough RAM to finish the job. This problem can happen when you have a lot of NSF files, not enough RAM, or when you run a lot of apps at once. If you are running a 32-bit version of the OS, which has memory limitations, it can also happen.

The NSF file itself may be quite large or only a little bit broken, which uses more memory during the conversion process. Before converting, make sure that IBM Notes is not open.

To avoid this problem, close other programs, restart your computer, and make sure you have necessary free disk space. It can also assist to use a trustworthy software like TrustVare NSF to PST Converter. It can handle huge NSF files without putting too much stress on your computer and convert Lotus Notes to Outlook quickly. Before you start, make sure you have a backup.