Yes, except for Windows XP 64-bit and Windows Server 2003 64-bit with Itanium processors.
Yes; you must use an upgrade disk, and it has to be the same "bit" that your current OS is (e.g. 32-bit upgrades to 32-bit, 64-bit upgrades to 64-bit).
will ccleaner work on a 64-bit windows instillation
32 bit applications will work on 64-bit but they will not run as efficient as 64-bit application. the reason for this is the 64-bit uses the memory better than a 32-bit. this is why a 32-bit can only use up to 3 gigs of ram and a 64-bit can use 16 gigs +
There are two versions, one for 32 and second for 64 bit. If your version is for 32 bit, it will not work in 64 bit computer.
most will
Yes.
It depends on which one.Windows 7:1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)16 GB available hard disk space (32-bit) or 20 GB (64-bit)DirectX 9 graphics device with WDDM 1.0 or higher driverArch Linux:A 32-bit or 64-bit processor64 MB of RAMAbout 400-500 MB of disk spaceAs you can see, there is a stark difference.
No.
YES
on x86-64 processors, yes. On Itanium, no.
You need the hardware that can support both 64 bit computing as well as the software (most especially the operating system) that can run on a 64 bit platform.
Sometimes, depending on the disk and the kind of xp, i.e. professional, home, buisness, also if its a 64 bit