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Old 05-16-2014, 02:14 AM   #1
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Join Date: Mar 2012
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Question What happens if one installs Catalyst without uninstalling the old version ?

Just like the title says.

I installed windows 8, let it update to windows 8.1
Then I installed Catalyst 14.4 for my HD 7870 without uninstalling the old version (windows put catalyst version 13.something automatically so I forgot about it).

The installation went smoothly but I haven't actually played any games.
Should I went through the whole thing against i.e. uninstall 14.4 and install it again ?
What are your experience when doing this ?
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Old 05-16-2014, 03:09 AM   #2
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I would expect it to work. If you find there's a performance / stability problem directly after updating, then try reverting, uninstalling then updating.

I can't remember having any problems updating drivers of the type you're suggesting, but then I've stopped updating drivers since AMD finally released a driver that generally works with my 5770.
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Old 05-16-2014, 05:13 AM   #3
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Have always updated AMD gpu drivers across the old AMD drivers without any problems for years. I'd not worry about it unless you come across specific problems.
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Old 05-16-2014, 05:46 AM   #4
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depends.....some say it can cause universal destruction; causing a paradox hole to rip open and swallow all known universes......

Or not beta drivers you'll want to uninstall old drivers for...official drivers tend to play a bit better.....
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Old 05-16-2014, 06:33 AM   #5
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I have had it break but only with particular upgrades. If you flick about between beta and whql drivers then the difference with profiles embedded can sometimes result in corrupted installs. I had it happen twice in a 6 month period but that was a year ago. Whether it works properly really depends on AMD and how they prepare the installers.
I no longer frequent these forums.
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Old 05-16-2014, 06:34 AM   #6
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anything and nothing. more often than not, nothing weird happens.
if we clone dinosaurs, can we have dino burgers?
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Old 05-16-2014, 07:19 AM   #7
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Unless you're using beta drivers or your current drivers are giving you issues, just install over it. You most likely won't have any issues. If you do, just uninstall and reinstall. There's no major risk, really.
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Old 05-16-2014, 10:06 AM   #8
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Originally Posted by Ramses View Post
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Old 05-16-2014, 10:17 AM   #9
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As someone who just did that some hours ago I don't recommend. I got blue screen with some atikmdag.sys error...
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