Error: Disallowed Key Characters (Trend Micro Account)
LAST UPDATED: SEP 17, 2020
You receive the following error message when accessing your Trend Micro Account:
"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:
Expand All
Internet Explorer
Delete Temporary Internet Files in Internet Explorer
- On your keyboard, press the Windows
+ R keys.
- In the Open field, type
inetcpl.cpl, then press ENTER. The Internet Properties window should open.
- Under the General tab, click Delete... under Browsing History.
The Delete Browsing History window will appear.
- Put a check on the following checkboxes:
- Temporary Internet files and website files
- Cookies and website data
- History
- Click Delete.
- Click Yes when asked to confirm to delete cache, then click OK.
Microsoft Edge
Delete Temporary Internet Files in Microsoft Edge
- Click the Hub on the Microsoft Edge menu, then select History.
- Select Clear all history
- Choose the types of data you want to remove from your PC, then select Clear.
- If you use Cortana and want to clear browsing history that's stored in the cloud, select Change what Microsoft Edge knows about me in the cloud, then select Clear browsing history.
Google Chrome
Delete Temporary Internet Files in Google Chrome
- Click the Chrome menu
on the browser toolbar.
- Select Tools.
- Select Clear browsing data.
- In the dialog that appears, select the items that you want to remove.
- Use the menu at the top to select the amount of data that you want to delete.
- Select beginning of time to delete everything.
- Click Clear browsing data.
Mozilla Firefox
Delete Temporary Internet Files in Mozilla Firefox
- Open your Firefox browser.
- Click Tools, then select Options.
- Click Advanced.
- Click the Network tab.
- Click Clear Now in the Offline Storage section.
- Click OK to close the Options window.
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