While installing Microsoft Security Essentials Software, repeated error occur Error Code : 0x8004FF81, 0x8004ff88
- Have you reviewed and tried the steps listed here? http://windows.microsoft.com/en-US/windows/i-cant-install-microsoft-security-essentials
- Are Windows Updates working fine?
http://support.microsoft.com/default.aspx/kb/971058?p=1 - if necessary, run the FixIt to reset the Windows update components.
- Any other security software still installed? A possible reason for this problem is that you have conflicting security software installed fully or partially on the PC. Did you have a trial version of McAfee, Norton, Trend Micro pre-installed when the laptop was purchased? Remove all those security software from the PC.
- You may need to use a cleanup tool to remove your prior security software: