Probably it is bcz of system locale. You need to change system locale.
Click Start, then Control Panel
Click Clock, Language and Region
Windows 10, Windows 8: Click Region
Windows 7: Click Region and Language
Windows XP: Click Regional and Language Options
The Region and Language options dialog appears.
Click the Administrative tab
On Windows XP, click the Advanced tab
If there is no Advanced tab, then you are not logged in with administrative privileges.
Under the Language for non-Unicode programs section, click Change system locale and select Russian language.
Click OK
Restart the computer to apply the change.