As the administrator of your company’s network you are asked to upgrade several Windows NT 4.0 computers to Windows 2000 Professional. All user settings and application settings must be preserved.  Most applications currently running are compatible with Windows 2000 and all the Windows NT 4.0 computers meet the minimum hardware requirements. After you upgrade several computers to Windows 2000 Professional, you find that some applications did not upgrade properly.   What utilities and/or applications should be disabled (or removed) before upgrading?（）

• A、Custom printer third-party software.
• B、APM and Anti-virus software
• C、All Non-Microsoft Products
• D、All 32-bit applications
• E、Third-party video drivers