In case of an ataport.sys file error, you may encounter a blue screen of death. Therefore, you need to remove this kind of virus at first. Then need to fix the blue screen of death by repairing the corrupted ataport.sys file. I would like to recommend DLL Suite, which is a professional tool for a blue screen fix with ataport.sys. Download DLL Suite, install and run > Click Dashboard menu and > Click Scan DLL Errors button > Click Fix DLL Errors button after the scan.