David Hill

This error typically occurs due to network connectivity issues, insufficient disk space or permission problems on the affected devices. It should be resolved if you've a stable network connection, enough free disk space and proper permissions for KES updates. You should check all these things and plz restart the update task after addressing these issues. Give it a try....

As the file opens in WPS Office without issues, you can add the file to Kaspersky's exclusions list to stop it from being blocked in Microsoft Excel and this should allow you to open it in Excel without any problems.

To disable the trial popup window in Kaspersky Standard, you can try these steps like first, open the Kaspersky program on your device. Then, navigate to the settings or preferences section. Look for an option related to notifications or promotional messages. You might find an option to disable or turn off these popups there. If you can't find it, try exploring the settings more thoroughly.