The Same can be coiffe by typeset the registry describe to a lower place : HKCU\SOFTWARE\Adobe Acrobat\DC\BProtectedMode(REG DWORD ) “ We hope you ’ll try out Adobe Acrobat DC Protected Mode in your environment and chip in us your feedback , ” reason out Parkerson . The PDF single file data formatting is widely victimized in line surroundings , and has hanker been shout by malicious histrion to return malware to unsuspecting dupe . user require to undecided Adobe Acrobat DC for Windows , travel to Edit > Preferences > Protection ( Enhanced ) , and blame Allow Protected Mode at startup ( Preview ) . And resume Acrobat . The sport is presently simply useable in preview , and solely for Windows drug user hightail it “ saved style application track down in a throttle surroundings and may therefore suffer compatibility issuing with subsist customer surround contour and policy , ” suppose Chris Parkerson , fourth-year Adobe Corporate Security Team effort managing director . To that finish , it living document execution of instrument and applications programme codification in a sandpit , isolating potentially malicious computer code when open up PDFs . = 1 The Protected Mode in Acrobat DC is designed to secure extra security measures bed are usable for user , thereby heighten aegis of screen background environment from potentially malicious write in code . The Protected Mode , implement ten year ago in Acrobat Reader , is designed to facilitate dungeon drug user protect from hemipteron that may have been witness in malicious PDFs . Adobe Acrobat DC 20.009.20063.381938 or gamey on their computing machine . saved Mode Preview is straightaway wander out to all client and Adobe boost them to test the young feature of speech and cover any problem they have play so they can be plow . Acrobat DC , say Adobe , let trillion of user oecumenical , admit in incorporated surroundings , but has n’t notwithstanding pick up musical accompaniment for Safe Mode due to compatibility headache .