Ddi.dll is used for exchanging messages between computer system and computer graphics program. It deals with graphical outputting with all of the window programs. But do you know what gdi is? Gdi means Graphics Device Interface. In Windows Operation System, most of the applications with graphic interface have to run with gdi. As it provides the function that can output graphs and texts on screen, on printers and on any other output devices conveniently.
When your PC exists the gdi.dll error , you will receive an error message from your computer system. The error message may pop-up when you are installing certain programs, or shutting down Windows. There are various of error messages you may receive as following:
The first reason is that the file of gdi.dll is removed or damaged by accident. If it is removed, you can recover it from recycle bin. But if you have already emptied your recycle bin, you can recover it with a file recovery program. This fixing way is easy but not so good. However, if the file is damaged, you can copy an intact file from the other normal computer with the same version as Operation System, then remove it to the right location. Normally, the gdi.dll file is located in System directory:C:\Windows\ System32. Except the system of Windows95/Windows 98/Windows Me, the file is located in system directory:C:\Windows\System.
The second reason is that your PC has been infected by virus, or even malicious software. This situation prompts you that you should protect your PC regularly in daily life. In this case, you can download an antivirus software to remove virus and malware.
In order to fix this error, you should select a registry cleaner. Registry is a database which stores hardwares, softwares, user settings, security for folders and programs. A registry cleaner can scan, detect and then take system errors away automatically. So it is a smart way to select a registry cleaner for your computer. On one hand, it can help you improve your computer with a good performance. On the other hand, it helps you optimize your PC regularly and safely.