I have been using the Windows 64 bit operating system for quite a long time 9 years ago. never encountered any significant problems.I have been using Windows 64-bit for 5 years now, and have rarely come across software that is incompatible with this architecture.
1. Are you using a 64-bit OS (Windows, Linux, Mac)?
2. How many years?
If not, what software is incompatible with 64-bit OS that prevents you from upgrading to the better platform?