360Util64.dll is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like 360Util64.dll, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like MpSigStub.exe - to follow. These files were created so that multiple programs (eg. 360 Total Security) could share the same 360Util64.dll file, saving valuable memory allocation, therefore making your computer run more efficiently.
Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared DLL file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when 360Util64.dll is attempted to be loaded either when 360 Total Security is starting up, or in some cases already running. Some of the most common 360Util64.dll errors include:
- Access Violation at address - 360Util64.dll.
- 360Util64.dll could not be found.
- Cannot find C:\Program Files (x86)\360\Total Security\360Util64.dll.
- Cannot register 360Util64.dll.
- Cannot start 360 Total Security. A required component is missing: 360Util64.dll. Please install 360 Total Security again.
- Failed to load 360Util64.dll.
- The application has failed to start because 360Util64.dll was not found.
- The file 360Util64.dll is missing or corrupt.
- This application failed to start because 360Util64.dll was not found. Re-installing the application may fix this problem.
Your 360Util64.dll file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with 360 Total Security), or deleted by a malware infection. Furthermore, 360Util64.dll file corruption could be caused from a power outage when loading 360 Total Security, system crash while loading 360Util64.dll, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.
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