please who can help me i tried all steps in these links but the problem still available
If this is a new install or an upgrade, make sure you have the system requirements for the version (you should always include the version you are using in you question). it looks like it is 10.3.x so
ArcGIS 10.3.x for Desktop system requirements—Help | ArcGIS for Desktop
especially look at the .net framework and the others items near the end of that page.
If this is on an existing install and just started happening, look at Resetting your ArcGIS application profile
Also, depending on the version of Internet Explorer you may need to tweak some of the settings for ActiveX.
Repairing the ArcGIS Installation might resolve the issue.
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