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1. Minimum System Requirements
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OS (Operating System): Microsoft® Windows® XP Service Pack 2, Vista (Operating System must be up to date with the latest fixes)
Processor: Intel Pentium 4 2.4GHz or AMD Athlon 64 +2800
RAM: 1024 MB RAM for Microsoft® Windows® XP / 1536 MB for Microsoft® Windows® Vista
Video: 128 MB Video RAM or greater with DirectX9 Vertex Shader/ Pixel Shader 2.0 support (NVIDIA GeForce 6600 or ATI Radeon 9800 or better)
Free HD Space: 8.5 GB available hard drive space
Sound: DirectX 9.0c compliant soundcard, plus speakers or headphones
DVD: DVD-ROM
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2. Recommended System Requirements
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OS (Operating System): Microsoft® Windows® XP Service Pack 2, Vista (Operating System must be up to date with the latest fixes)
Processor: Intel Core 2 Duo (dual core) or equivalent AMD X2 processor or better
RAM: 2048 MB RAM
Video: 256 MB Video RAM or greater with DirectX9 Vertex Shader/ Pixel Shader 2.0 support (NVIDIA 7900 or faster with 512 MB of memory)
Free HD Space: 8.5 GB available hard drive space
Sound: DirectX 9.0c compliant soundcard, plus speakers or headphones
DVD: DVD-ROM
[...]
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6. Known Issues
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1) The Witcher may exhaust virtual address space when running on 32-bit Windows Vista. Microsoft has released a hotfix that addresses this problem. Please download the hotfix from the following location when playing the game on 32-bit Windows Vista:
http://support.microsoft.com/kb/940105 N.B. I've installed the hotfix 2 months ago, still hits the the 2Gb barrier
2) The following video cards are not currently supported: S3 Colt, S3 S27, S3 S8
3) The following processors are out of range: AMD Duron Series, AMD Athlon XP 2400+ through 3200+, AMD Sempron 2400+ through 2800+, and the INTEL Celeron Series.
4) Some bugfixes mentioned above will work only if a game is restarted from scratch, for some others a corresponding act needs to be restarted.