"Disallowed Key Characters" error message appears when accessing Trend Micro Account

  • Solution ID: 1114023
  • Last Updated: Oct. 05, 2017 11:52 PM (PST)
  • Applies to: Antivirus+ Security - 2016;Antivirus+ Security - 2017;Antivirus+ Security - 2018;Internet Security - 2016;Internet Security - 2017;Internet Security - 2018;Maximum Security - 2016;Maximum Security - 2017;Maximum Security - 2018;Password Manager - All;Premium Security - 2016;Premium Security - 2017;Premium Security - 2018;
  • "Disallowed Key Characters" | Error Message | Trend Micro Account

You receive the following error message when accessing your Trend Micro Account:

Disallowed Key Characters

"Disallowed Key Characters"

This problem happens on the following web browsers:

  • Internet Explorer
  • Microsoft Edge
  • Google Chrome
  • Mozilla Firefox

As a workaround, clear your web browser's cache. Do the following depending on your web browser:

Internet Explorer
Microsoft Edge
Google Chrome
Mozilla Firefox