The Bad Gateway Error 502 is one of many HTTP status codes. However, this particular code typically indicates that a server failed to receive a valid response from another server that it was attempting to communicate with, for the purpose of loading a web page. This error is usually coming directly from the server, which means, in most situations, it has very little to do with your PC.
The Windows Genuine Advantage Validation Tool is a system that was designed and created by Microsoft in order to implement online validation of their most recent operating systems. In one of the more recent operating systems, Windows 7, the Windows Genuine Advantage (WGA) Validation Tool is renamed to Activation Technologies.
When you encounter the ati2dvag.dll error, it will represent itself in a number of different ways. The ati2dvag.dll is an integral component of the drivers for ATi Radeon graphics cards; however it is also a file that is heavily prone to conflicts. There are a number of reasons why it can and may cause an error in your system, but the most common reasons are due to incompatibility and accidently erasing the file.
File compression involves encoding data using fewer bits than the original file. There are currently two different types of compression, they are lossless and lossy. Lossless compression uses a method which entails identifying and removing redundant bits, while maintaining the full integrity of the original file. Lossy compression on the other hand reduces the size of a file by identifying data that it deems unnecessary.
A computer or system crash is basically when an application or hardware component on a computer ceases to function properly. In most cases, the application will stop abruptly while producing an error, this is also the case when you have a full system crash, as the system will shutdown/restart, then present you with an error message once the system has fully rebooted.
Internet Explorer (IE) as you should already know is a web browser developed as a free component of Microsoft’s operating system, dating way back to 1995. The first Microsoft Internet Explorer was made available as an add-on for the Windows 95 operating system. Over the years more improved versions have since been developed and made available either via free download or as part of a service pack; depending on the operating system in question.
A file extension is basically a method of letting both the computer system and end user know which program(s) created and/or open a file. All files created on your computer system have their own characteristics which is indicative of the application that was used to create it. If you use the wrong application to open a file, you will be halted, but in some instances it may crash the program.
The ntdll.dll file is an integral component of your operating system; it’s described as being an NT Layer DLL, which means it has NT kernel functions, functions which are required for optimal system performance. This file can typically be found in your System32 folder and also in the i386 folder of your Windows Installation CD. The primary reason why you would receive an ntdll.dll error is because of file damage and/or corruption within your operating system.