The restriction of these words is because they are related to names of the operating system.
It has happened to many that when putting a name to a file or folder an error to save may appear, and although many do not understand the reason for this, behind this failure there is a logical reason.
If you asked yourself why this happens, the explanation is very simple: Windows has banned some names for registering documents, files or folders.
From the earliest versions of the Microsoft operating system, it is normal for an error to occur when trying to put a title on a document or folder. What happens is that these names are related to some of the system itself and that is why it throws the error automatically.
Forbidden words
Among the most common words that are prohibited when creating a folder or file is “with” and if you have any doubt about it you can try it. There are words that can already be used but it depends on the Windows version you have. In the case of “with” it remains restricted because it is widely used in the system. If you don’t know what those names are, here we mention them:
Banned names to create folders and files in Windows
- WITH.
- PRN.
- TO THE.
- CLOCK$.
- NO.
- COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8 and COM9.
- LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9.
Why can’t they be renamed with those names?
The origin of this failure dates back to 1974 with the CP / M operating system where many functions were named under those names, and 10 years later Microsoft bought from the competition, that is, the 86-DOS operating system from SCP, which decided to replace all the name and restrict them within your interface.
“When Microsoft prepares its new generation of operating systems called NT, it includes backwards compatibility with MS-DOS and therefore it includes all those special files (expanded in the case of ports, COM and LPT being from 1 to 9, that is, COM1, COM2 … COM9 and LP1 … LPT9) “, he points out JASotf.org
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