Sometimes they have been referred to as directories, which comes from older operating systems.
Folders used to be called 'directories'.
Directories
Well, depends what you mean by 'main folder', if your on windows and you mean the operating system folder, you find it usually under C:\Windows\ or on older computers, C:\WINNT
If you are running a Windows operating system, in the Windows folder on your C:\ drive, in the Fonts folder are the fonts that are installed. If you browse to the folder in a Windows Explorer and show the Status bar (under the View menu) when you select the Fonts folder the number of fonts will appear in the status bar.
This depends on your Operating System. On a Windows OS, the most common and most important folders are Windows, system32 and most other folders inside the Windows folder, ProgramData, Program Files, Program Files (x86) (the installation folder for 32-bit programs on a 64-bit version of Windows), and Users.
The Operating System is located in a folder on one of the hard drives usually C:\. This is one \Windows\System32 and \Windows\winsxs. System32 is where the main operating system is but the manafest files are in winsxs.
Window Vista Ultimate
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A Mac is a computer and Windows is an operating system so it is impossible to change one into the other. If the Mac has an Intel processor you can downgrade it by installing the Windows operating system. You can use the Boot Camp utility (in the Utilities folder within the Applications folder) to partition your hard disc and install Windows so you can use both Mac OS X and Windows.
Where you drag from one folder to another on the same drive, Windows interprets this as a CUT/PASTE command and moves the file from one folder to the other. Where you drag a file to a folder on another drive, Windows interprets this as a COPY/PASTE command and creates a duplicate of the file in the target folder.
Open the folder and right click on an empty space in the folder. Then click on "Customize this folder." Click on the "Choose Picture" button and browse to a picture you want to use as the background of that folder.
Microsoft Software Windows Seven Operating SystemHow to create a succesful folder in Windows Seven Operating System Graphics User Interface:First Instruction:Click with the Right Mouse Button, directly anywhere on your desktop, without selecting pre-existing folders, and select New Folder, out of the pre-exisisting alternatives, and then you will be prompted to rename your new folder, whether Zipped or Standard Tier.First Alternative:The Windows Seven Operating System hotkey for creating a new standard-tier folder is CONTROL+SHIFT+N.Second Alternative:You may use the Hot Key, for renaming a folder for ease of use, of F2 on Desktop Computers, depending on Operating System, or FN+F2 on a Laptop with integrated Central Processor Unit and Graphics Processor Unit.
Look in the Windows folder, it is in there.
Root directory where you install the operating system (windows). Usually on C drive.