amazingchestahead: When? When you're completely done with installing mods. When you're sure that you're not going to uninstall / reinstall anything anymore. This should be the last step just before you start playing the game for real.
Now, since you're installing "a ton of mods":
Installing BG mods can be a nasty business, even when you have an indepth guide in front of you. It's like building a brick house from the ground up, and you're stacking bricks upon bricks at the right places in the right order. Uninstalling a mod is basically pulling a bunch of bricks out of the thing. If you want to uninstall mod A when you have already installed mods B, C ,D after it, B, C, and D will have to be uninstalled, before A can be uninstalled, and then B, C, and D will need to be reinstalled.
Biffing is just another mod. Installing other stuff after biffing is fine; you just end up with a bunch of files in Override when you could have biffed them as well. But having several thousand files in Override shouldn't be a problem. If you want to uninstall something that you installed before biffing though, everything that has been biffed will be unbiffed first, then re-biffed. It's a cumbersome process, even when everything goes smoothly.
The best thing one can do is, seriously, Don't. Make. A mistake. Plan your installation beforehand. Write it down. Step by step. Because in the best case scenario, in which nothing is broken after a bunch of "removing this brick and that brick then putting these back on", you will start getting sick of the installation process. I don't know what mods you're using, but some mods (notably SCS) can take a very long time to install and uninstall. And, you will have to reselect your choice for every single component of the mod, and some mods, like Tweak Anthology, have like 500 components. Well, not quite, but you get the idea.
I don't know for certain, but perhaps uninstalling / reinstalling stuff repeatedly won't break anything. If you're uninstalling something you've just installed, and there's no other mod installed after it, you'd be fine. Or if the mods getting uninstalled / reinstalled are very small. Otherwise, if you're in doubt, it's normal to start fresh from scratch. Especially when the mods being uninstalled / reinstalled are massive ones with global, pervasive effects such as SCS, Item Revisions, Spell Revisions, and so on.
I cant get BGT installed without biffing. it shows the warning ''WARNING: 213 SET_STRINGs were executed but no uninstall information was created.
[.\dialog.tlk] created, 87718 string entries
NOT INSTALLED DUE TO ERRORS Baldur's Gate Trilogy - Core''
and the installation window says
''
[data/area9400.bif] will contain 6 resources totalling 25152556 bytes
[data/area9500.bif] will contain 12 resources totalling 31573668 bytes
[data/area9600.bif] will contain 6 resources totalling 25377948 bytes
Stopping installation because of error.
ERROR Installing [Baldur's Gate Trilogy - Core], rolling back to previous state
WARNING: Unable to write STRING_SET uninstall info to [bgt/backup/0/UNSETSTR.0]:
Sys_error("No space left on device")
WARNING: Unable to uninstall STRING_SET references from [bgt/backup/0/UNSETSTR.0
]: Sys_error("bgt/backup/0/UNSETSTR.0.TEXT: No such file or directory")
Will uninstall 4252 files for [BGT/BGT.TP2] component 0.
ERROR: error copying [bgt/backup/0/MINSCJ.dlg]
ERROR: error copying [bgt/backup/0/MINSCP.dlg]
ERROR: error copying [bgt/backup/0/EDWINJ.dlg]
ERROR: error copying [bgt/backup/0/EDWINP.dlg]
ERROR: error copying [bgt/backup/0/BEDWIN.dlg]
Uninstalled 4252 files for [BGT/BGT.TP2] component 0.
area9600\ar9600.tis - プロセスはファイルにアクセスできません。別のプロセスが使用
中です。(cannot access the process, other programs are using it)
ERROR: Unix.Unix_error(24, "write", "")
PLEASE post the file SETUP-BGT.DEBUG to
http://forums.spellholdstudios.net/inde x.php?showforum=261
Using Language [English]
Is there something i can do to fix this?