Hi, First of all this is my 1st post cheers to everyone. My operating system Windows 7 - 64 Bit. My MS Office below are also 64 bit. I'll give all detail I can below: I downloaded an MS Office 2013. Info of the ISO is below: VL SOURCE: SW_DVD5_Office_Professional_Plus_2013_64Bit_English_MLF_X18-55297.ISO Release File: Office-2013-PPVL-x64-en-US-Feb2014.iso Size: 1.38GiB SHA-1: 97AC7FAFF2CADD9428CD3F5AD3BB24A4BECFD9A5 then, I activated MS Office 2013 above using the Microsoft Toolkit 2.5. It's running like a charm, it's activated and getting the updates. I got all updates. However I needed to use MS Visio. Since my ISO file above includes only Visio Viewer I downloaded file below: SW_DVD5_Visio_Pro_2013_64Bit_English_MLF_X18-61014.ISO MD5 : f2e1959d7d1fc1c0b8b6fa9a9f839c6b SHA1 : 13e183fde9e57726348ea4a2800dd778976cec53 CRC32 : d41f8cd5 SHA-256 : 65cc6286b025f8fe87b2b3d46acd1a6c82a224fa9efdf99506441995de1c4c9a while I was installing MS Visio 2013, by the help of setup.exe I choosed "remove previous visio and upgrade visio". so I uninstalled Visio Viewer and upgraded to MS Visio Professional 2013 64 Bit. For the time being, I can use MS Visio Professional 2013 64 Bit but I couldn't activate it. I tried process below: 1 - with Microsoft Toolkit 2.5., I used it's PRODUCT KEYS > Microsoft Office 2013 > Visio Professional > Check after pressing 'Check' a key appeared on screen of Microsoft Toolkit 2.5. I copied that key and applied to MS Visio Professional 2013 64 Bit. Visio says that "it is activated". Status seems activated also. BUT after I restart my computer and open visio I always see that Visio is unactivated. So I couldn't achieve a permanent activation for my MS Visio Professional 2013 64 Bit. I don't want to uninstall all and download a different office ISO. So I hope you can help me to activate ONLY my MS Visio Professional 2013 64 Bit permenantly. Thanks in advance. Regards.