I've installed Windows 7 Home Basic x86 on a PC. The OS is located on "C" drive as usual.The C drive's size is 21 GB, There is now 6 GB space free after installation,Now I want to install 64 bit version.But the setup isn't letting me to do it. Because it says, there must at least 15 GB free space.
If I format the drive,there will be more than 15 GB free space. But I can't do it,because after that there will be no more any OS on that PC.Is there any way to format the drive first then install the OS?
Any solution? Note :
I am installing manually from my PC, not from any DVD/USB.
I also haven't got any 4GB+ Blank DVD/USB right now.