Windows Recovery Environment
scenario means problem
Diagnostic software locates problems within the software, hardware, or any kind of combination thereof within a system, or network of systems. It provides users the needed assistance in isolating the problem, normally within the primary operating system of the computer(Linux, Windows, etc.). Once a problem is isolated with diagnostic software, it can be resolved.
It is a light that illuminates when the vehicles computer has detected a problem in one of the eight operating systems monitored by the computer. You will need to have a diagnostic performed to determine what code is set and what is causing the problem.
Reading diagnostic codes is easy. The driver plugs the reader/scanner into the diagnostic port of the vehicle, and the scanner/reader will give a code if there is a problem, and tell them the type of problem.
A Diagnostic software is something that is use to identify/diagnose certain conditions in your system. for example an anti virus software can be considered a diagnostic s/w because it can diagnose virus infections in your machine and protect it.
I thats your problem
Diagnostic tools are used to check your car where has the problem and how to do.There are many kinds of diagnostic tools,you can consult,maybe it can help you:http://www.obd2tool.com/
The mechanic ran every diagnostic test, but still could not locate the source of the problem.
Diagnostic arthroscopic surgery is not recommended unless non-surgical treatment does not fix the problem.
O2S problem
A computer diagnostic test will show a timing belt problem for a 1999 Mazda 626. If there is a problem with the belt, diagnostics will determine if it needs to be repaired or replaced.
Diagnostic output is any output which is generated in response to an error in the program and which will help find and fix the problem.