id summary reporter owner description type status component version resolution keywords cc guest host 10436 Virtual Box install fails (rollback, MSI code 1603) on Windows 7 64 host bobheck "I have read the posts, howtos and such and still cannot determine why my install is failing (rollback initiated during install) MSI error code 1603. Host: Windows 7 64 bit Tried command line install without USB drivers. Still fails. The only driver log created was setupapi.app.log. It and the install log are attached. Any help would be greatly appreciated." defect new installer VirtualBox 4.1.12 install fails bob@… Windows Windows