How to solve McAfee's failure to automatically update the virus database and run an error message

Comments: I found that McAfee could not automatically update the virus database. I don't know what the problem is. Later I read the following method from the Internet and tried it. It feels good. Generally, there is no problem after I reinstall it.1 can McAfee update the virus database? (Under normal operation)
If the proxy is normal, a message indicating an error occurred while downloading the virus database from the NAI database is displayed. Check whether the firewall is installed or not.
The frameworkservice.exe process is excluded. If not, remove the "exception" in the firewall.
In addition, you can check "services" in Windows to see if "McAfee Framework Service" is disabled. If yes, manually start the Service and change the Service to automatic.
2: If McAfee is unable to update the virus database and an error is reported during installation:
Error 1920/1923: "The Service MaAfeeFramework failed to start. Make sure you have sufficient permissions to start the system service. "and" initialization of the general update program subsystem failed. Make sure that the McAfee Framework Service is
Running. McAfee Common Framework returns errors such as [email = fffff95b @ 2/fffFFBC] fffff95b @ 2/fffFFBC [/email] @ 3.
A thorough solution can be adopted (basically solving various faults in MCAFEE)
The details are as follows:
Step 1: uninstall the McAfee product. You can directly Delete the product from the Add/delete program, or run the following command to uninstall the product:
McAfee8.0 uninstall:
Msiexec/x {7B256F27-273D-4358-8DBE-8C910EAF8857} REMOVE = all reboot = R/q
Step 2: uninstall the agent: (skip this step if mcafee epo is not used)
McAfee Common Management Agent uninstall:
"X:/Program Files/Network Associates/Common Framework/FrmInst.exe"/Remove = Agent
Step 3: Clear related registries
Delete the McAfee Common Management Agent service (delete the McAfeeFramework key value ):
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/McAfeeFramework
McAfee VirusScan Service (delete McShield and McTaskManager key values ):
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/McShield
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/McTaskManager
The following key values in the Registry are directly deleted:
HKEY_LOCAL_MACHINE/SOFTWARE/Network Associates
HKEY_CURRENT_USER/Software/Network Associates
RUN key value (delete ShStatEXE and McAfeeUpdaterUI key values ):
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Run/ShStatEXE
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Run/McAfeeUpdaterUI
Step 4: restart the computer;
Step 5: Delete the McAfee directory (delete the related Network Associates directory ):
X:/Documents and Settings/All Users/Application Data/Network Associates
X:/Program Files/Network Associates
If you do not have the all Users directory or the all users directory does not have the Network Associates directory, you can use the search function to delete the Network Associates directory!
Step 6: reinstall MCAFEE, install the latest Sdatxxxx, and update it online immediately.