I am running Windows(8.1) 32 bit and I have my disc partitioned to several logical discs. 1 for OS, 1 for data and 1 for applications. Haven't been able to find answer to my question: Can I do the same partitioning with Windows 64? Are there any known problems with that? What about the fact, Windows 64 use 2 program files folders, could that be a problem?
That wont be a problem for the OS and most programs I know of. I do a similar thing with my system, and asside from me forgetting where it is at, I have not had any problems.
You can have limited number of primary partitions (4 in windows), but the limit for Logical partition is in 3-digit-figure
you only need 2 primary partition basically if you are installing windows 8 1. for Bootloader (the one sized 350 MB) 2. Windows Partition
rest could be logical parition.
so to answer your question with x64, it won't be a problem