Encryption
When display settings are making the screen unreadable.
the letters were unreadable and can not create account
If you did not have CD holders, the CD would become dirty and scratched, therefore making the CD unreadable.
the root word for readable is read a
The term "country of issuance" in official documents refers to the country where the document was originally issued or created.
The xbox 360 can badly damage disks if you tilt the xbox from horizontal to vertical (or vice versa) making them to the point of unreadable
Unreadable handwriting is often referred to as "chicken scratch" or "scribble." It can make it difficult for others to decipher the written text.
by making folders and sub-folders where you saving your word documents on hard drive
Another word for not being able to read something is "illegible." This term describes writing or printed text that is difficult or impossible to decipher due to unclear handwriting, poor printing, or other factors. It can also refer to text that is obscured or damaged, making it unreadable.
Where you print pictures and documents.
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Generic term is an administrator