VSSShield is intended to be a debugger for high-risk applications, notably Vssadmin and WMIC. VSSShield uses an all-or-nothing approach; it targets anything that appears to be an attempt to delete shadow copies and prevents the execution, and it also kills the associated parent process.
VSSShield serves only as mitigation and should never be considered as providing any level of assurance against any particular event. For complete coverage, consider using Malwarebytes for complete antivirus protection and to protect your devices, data, and privacy.
McAfee Consumer Product Removal Tool is designed for the complete removal of McAfee Security products in order to reinstall or install a different antivirus.