Rome Total Realism 7 and Roma Surrectum 2 won't install "installation already in progress"

[Faris ad Din]

I searched the forums and Google for anything relevant to my problem, and couldn't find anything, so I'm posting my problem here and hoping someone can help.

I just installed Rome: Total War Gold Edition from disc and patched it to 1.6, downloaded Rome Total Realism, Europa Barbarorum, and Roma Surrectum, and tried installing them. I am getting an issue with the Rome Total Realism and Roma Surrectum installations where shortly after starting installation, I get a popup window saying:

(Installer Information)
Another installation is in progress. You must complete that installation before continuing this one.



I'm running Windows 7 Home Edition on a new desktop PC I built (Intel i7-2700k 2nd generation, Nvidia GeForce GTX 560, 16 GB RAM) so requirements are no issue. I successfully installed Europa Barbarorum and its patch, while the other two RTW mods are refusing to install as they apparently believe there's another copy of their installation going on when I only clicked on the installers once. I think I did see something funny where the installer windows appeared to open up twice really fast, like one on top of another, but when I try to move the windows, it appears there is only one.

I figured that I just installed a whole bunch of Total War games on the new computer, so I restarted it, and the same mod installers yielded the same results. EB 1.1/1.2 worked, while RTR 7 and RS 2 balked.

I'm a Total War veteran since the beginning of the series and I've installed other mods for Rome and Medieval 2 and Empire on other computers with NO problems, I've even installed perhaps an earlier version of RTR on a previous computer before and made some of my own little mods.

I'm not sure if you guys need a dxdiag or how to do that, I've never had to do it because I've always been able to figure out solutions to the problem or eventually find them online, but I searched and Googled the "another installation is in progress" on the internet and found NOTHING in conjunction with anything Total War related.

My appreciation for help, in advance!

EDIT: I may have posted in the wrong forum, this looks like the technical help for vanilla only. I'll go re-post over in Roma Surrectum technical help and Rome Total Realism technical help. I believe it may be an identical problem for both installers.

[Brusilov]

As this was also posted in the RTR and RS parts of the forum and is being dealt with in the RS forum - CLOSED