It looks like your text is in "mojibake" (encoding error), but it clearly translates from Cyrillic to: (Download Update to version 1.0001 - SHoC).
Back then, patches were region-locked. You need the specific WorldWide , US , or CIS/Digital version of the patch to match your game disk/install.
The installer needs to find the game in your Windows Registry. If you are using a "repack," the official patcher might not see the game. Pro-Tip: Should you go higher?
Look under the "Shadow of Chernobyl" patches section. 3. Installation Tips
This refers to the legendary game . If you are looking for this specific patch, here is a helpful breakdown of why you might need it and how to handle it. Understanding Patch 1.0001 for S.T.A.L.K.E.R.
or AP-PRO.ru: The biggest community hubs for S.T.A.L.K.E.R.