Skip to main content

RealFlight Homepage

How do I correct online update installation error KEError 21081?

Some RealFlight 8 owners have been unable to download and install online updates successfully due to virus protection that's active during the attempted update. If these symptoms describe your situation, try the solution that follows:

You may not be aware that antivirus software is active on your computer, or will have to look hard to find it. But if one or both of the files mentioned above is missing, it's almost certainly due to antivirus software intervention.

SOLUTION: Remove the file(s) listed above as missing from quarantine. Then, try the online update again. Note: You may encounter "KEError 24052" next. If so, please see article How do I correct online update installation error KEError 24052?

To prevent future occurrences (depending on your level of comfort and technical knowledge), you can either: (1) disable all antivirus software during online updates, or (2) add exceptions for the files/directories above as appropriate.

Unfortunately, we can't provide exact instructions for your specific antivirus software. You may need to refer to its documentation for further assistance.

Return to Article List