The info-graphic titled as, "5 most common issues in computer repair, plantation" describes various issues we face while repairing system or laptop.
Missing Dynamic-Link Library (DLL) file: Main function of DLL file is to provide information to Operating system on how to perform certain functions. This error occur,
When your computer loses DLL files or something damage them.
When your system stopped reading a particular DLL file or doesn't know how to respond in certain situations.
Accidently, if you have missed or corrupted DLL file afterwards you're continuously receiving an error message every time you perform a certain function such as saving a file.
Virus or Spyware infection: If your computer has started reacting strangely, it may be a virus, a malicious software program that can infect your computer. Viruses invade your computer system while opening dangerous links or files, or downloading files from unknown sources.
For more details about different kinds of issues in computer repair and computer backup plantation, please refer the given info-graphic.