There seem to be an absolute rainfall of articles on the subject. Since this thread began, I have been reading several. Some of which contradict.
Whilst I have experienced GPT on various computers, I honestly cannot see why the average domestic user would need it? Certainly, in my case, the people I help are, on the whole, not so young. None of them would have use for more than a 2tb hd. Even for youngster game players, that is a lot of space. My own preference is an external, where extras can be stored and put out of the way for security.
Forgive my rants below - this is a little bit of a grey are for me, as far as in depth knowledge goes:
You link is similar to most others. About three years old, but I doubt much has changed. Some isolated quotes:
Whenever a new window is installed in a system, then it asks for the mode of disk partition: MBR or GPT.
Truthfully, I have never experienced that with windows. Did a fresh install two days ago?
Actually, if you want to install 64 Bit UEFI you have to boot your install media in UEFI mode I have never been asked either.
The MBR, Windows Operating System automatically separates a primary partition to store data and divide the remaining space into an extended partition.
Not sure, again, that i understand that. I have never experienced an installation on an empty SSD/HD creating and "extended" partition. I have found, if needed, that has to be done manually after the installation?
I agree I have always set up my own partitions after the OS install is completed.
1. I am using MBR for a long time, and I really need to extend the partition in the MBR disk. What should I need to do?
Easily done with command prompt or Disk management. I am, again, a little vague on its real practical use though
My introduction to 64 Bit Windows and UEFI came about in 2012 or so When I purchased my Asus G75VW. I had to relearn all that I knew about installing Windows. and actually I have never looked back. By 2015 all my computers were running in UEFI mode including my Z97 MB home-built computers. All the notebooks purchase since 2012 have come from the factory UEFI
2. I am having a huge amount of data in my system and my windows are not allowing me to save more data, due to the 2Tb size of my hard drive. How can I save my data?
Try an external disk.
Actually, with modern motherboards, GPT is supported even in a 32-bit Legacy system so all that is needed for a storage disk is to convert it to GPT The real 2TB restriction is for bootable hard drives/SSD
FWIW. There were, indeed, 64bit versions of XP and Vista
Anyway, I have finished spouting on a subject of which I have little experience. I think the OP has enough info now to work out his problem if any!