You can program the software to automatically correct frequent typos. For example, if you often type "বাগলা" instead of "বাংলা", Bijoy 52 2016 can fix it on the fly. This is a massive productivity booster for data entry jobs.
Cause: DEP (Data Execution Prevention) or antivirus conflict.
Solution: Add Bijoy.exe to your antivirus exception list. Alternatively, run the software in Windows 7 Compatibility Mode:
Bijoy 52 (2016) was a stable, widely-used version for professional Bangla typing in offices, newspapers, and publishing houses. However, by modern standards, it is outdated, paid, and has been largely replaced by free, Unicode-based alternatives.