Why did the Unable to load DLL [C:\Program Files\Java\jre1.8.0_131\bin\server\jvm.dll] error occur?

Question

Python

Hello.
Today I installed JVM 8u131 x64 and x86 + python-3.6.1-amd64 on clean windows 2012 R2 Standard.
There is a script in python that clings to Oracle via JDBC

import jpype
import jaydebeapi

jHome = jpype.getDefaultJVMPath()
jpype.startJVM(jHome, '-Djava.class.path='+PATH_LIB)
conn = jaydebeapi.connect('oracle.jdbc.driver.OracleDriver', URL_CONNECTION,[USERNAME,PASSWORD])
curs = conn.cursor()
curs.execute(sql_script)
....

on other windows 2012 R2 it works fine (on windows 10 also without problems),
BUT on this installation, windows began to return an error

Traceback (most recent call last):
  File "C:/Server/repositories/projects/um/templates/DB/Oracle/Oracle_JDBC.py", line 84, in <module>
    jpype.startJVM(jHome, '-Djava.class.path='+PATH_LIB)
  File "C:\Python36\lib\site-packages\jpype\_core.py", line 50, in startJVM
    _jpype.startup(jvm, tuple(args), True)
RuntimeError: Unable to load DLL [C:\Program Files\Java\jre1.8.0_131\bin\server\jvm.dll], error = The specified module could not be found.
 at native\common\include\jp_platform_win32.h:58

I checked jvm, dll in place, there are rights too ...
What could be the problem and how to solve it?