Patch 1.4 (The Witcher)

This is not the latest patch, but your installation must include this patch (or be Enhanced Edition of The Witcher) in order to apply the newest patch. Versions of the patch 1.4 downloaded before August 2011 will not work.
This links to information on how to upgrade from the original version to the Enhanced Edition of The Witcher. The patch is cumulative and contains all updates included in the previous patches.
== File integrity ==
To check the integrity of downloaded files, one can use an MD5 hash to calculate the MD5sum of the downloaded file and compare it with a known good sum. Below is a table of known good MD5sums (the list will be fleshed out shortly):
Filename 	MD5sum
TWEE_Upgrade.exe (August 2011) 	
TWEE_Upgrade.exe (Bad, pre-August 2011) 	
TWEE_English_language_pack.exe 	
TWEE_adventure_The_Price_of_Neutrality.exe	
TWEE_adventure_Side_Effects.exe 	
TWEE_Polish_language_pack.exe 	
TWEE_German_language_pack.exe 	
TWEE_Spanish_language_pack.exe 	
TWEE_Italian_language_pack.exe 	
TWEE_French_language_pack.exe 	
TWEE_Russian_language_pack.exe 	
TWEE_Hungarian_language_pack.exe 	
TWEE_Czech_language_pack.exe 	
TWEE_EAX_HotFix_2.3.exe 	
There are many tools that can calculate an MD5sum, for reference one can use the freely available MD5-Checksum by Nero because it lets you specify a known good MD5sum and it automatically compares it with the MD5sum calculated from your chosen file.
=== Verification process ===
 Please note that step-by-step description of the verification process has been moved to .
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Category:The Witcher patches
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