DTS/@RISK/WhatIf: Error "Object variable or With block variable not set" or Ribbons Don't Work
Software may fail if installed without admin rights. Fix: Run installer as admin → Repair (or reinstall if Repair isn’t offered). Other causes & fixes: • Conflicting add-ins → Find and fix startup conflicts. • No error number → Remove outdated Office registry references. • Corrupted Excel → Repair Excel. • DEP issues → Check Data Execution Prevention settings. • Manually added @RISK/DTS toolbars → Remove them in Excel; use desktop/start menu icons. • Office/Project install mismatches → Try another device, or deactivate @RISK and reinstall Windows + Office.