10 GB of available hard-disk space for installation additional free space required during installation (cannot install on removable flash storage devices).
64-bit operating system required: Microsoft® Windows Vista® Home Premium, Business, Ultimate, or Enterprise with Service Pack 1 or Windows® 7.Intel® Core™2 Duo or AMD Phenom® II processor 64-bit support required.Kindly see the system requirements of premiere pro 5.5 version for windows Thank for taking out your precious time and replying me back. bottom line, old programs require a matching old operating system every time Microsoft issues a Win10 update, there is the risk that an old program that HAS been working after the initial Win10 upgrade will STOP working. Microsoft changed their operating system and THAT is why your old program won't work, not because of anything Adobe did. Adobe did not change your old program to make it stop working. Owners of old programs simply have problems with Windows 10. NOTE - Win10 anniversary update version 1607 has caused MAJOR problems with old programs, so the above may not work says Encore, but sometimes required for ALL Adobe programs (this is NOT the same as using an Administrator account) or Run as Administrator to assign FULL Windows permissions may help. RIGHT click the program icon or EXE and select a compatibility mode in the pop up option window An idea that MAY work to install and/or run old programs in Windows 10.