Solution : https://service.sap.com/sap/support/notes/924376 (SAP Service marketplace login required)
Key words :
hklm\software\wow6432node\sap\sapgui front\sap frontend server\localdata, \software\sap\sapgui front\sap frontend server\localdata, terms history disable registry solution, disable sap gui, windows input history, 64bit operating systems, registry string values, sapgui path, specific fields entering, specific input fields
Related Notes :
1264378 | Suppressing input history for the SAP GUI |
1253051 | Firefighter ID Passwords in SAPGUI History |