y cual es el valor de la variable de entorno PATH, es lo unico que no me quedo claro

Muchisimas gracias ! Disculpen que moleste pero me surgió otro problema

Microsoft Windows [Versi¢n 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. Reservados todos los derechos.

C:\Users\****\Downloads\SpyNote5.0>java -version
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) Client VM (build 25.161-b12, mixed mode, sharing)

C:\Users\****\Downloads\SpyNote5.0>cd C:\Building\apktool

C:\Building\apktool>apktool d app-release.apk
I: Using Apktool 2.2.2 on app-release.apk
I: Loading resource table...
I: Decoding AndroidManifest.xml with resources...
I: Loading resource table from file: C:\Users\****\AppData\Local\apktool\framework\1.apk
I: Regular manifest package...
I: Decoding file-resources...
I: Decoding values */* XMLs...
I: Baksmaling classes.dex...
I: Copying assets and libs...
I: Copying unknown files...
I: Copying original files...

C:\Building\apktool>apktool b -f -r app-release
I: Using Apktool 2.2.2
I: Smaling smali folder into classes.dex...
I: Building resources...
W: C:\Building\apktool\app-release\AndroidManifest.xml: error: Unable to open file for read: Permission denied
Exception in thread "main" brut.androlib.AndrolibException: brut.androlib.AndrolibException: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\****\AppData\Local\Temp\brut_util_Jar_8648192645053380914.tmp, p, --forced-package-id, 127, --min-sdk-version, 10, --target-sdk-version, 22, --version-code, 1, --version-name, null, --no-version-vectors, -F, C:\Users\****\AppData\Local\Temp\APKTOOL1017699121716064467.tmp, -0, arsc, -0, apk, -0, arsc, -I, C:\Users\****\AppData\Local\apktool\framework\1.apk, -S, C:\Building\apktool\app-release\res, -M, C:\Building\apktool\app-release\AndroidManifest.xml]
   at brut.androlib.Androlib.buildResourcesFull(Androlib.java:477)
   at brut.androlib.Androlib.buildResources(Androlib.java:411)
   at You are not allowed to view links. You are not allowed to view links. Register or Login or You are not allowed to view links. Register or Login(Androlib.java:310)
   at You are not allowed to view links. You are not allowed to view links. Register or Login or You are not allowed to view links. Register or Login(Androlib.java:263)
   at brut.apktool.Main.cmdBuild(Main.java:227)
   at brut.apktool.Main.main(Main.java:84)
Caused by: brut.androlib.AndrolibException: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\****\AppData\Local\Temp\brut_util_Jar_8648192645053380914.tmp, p, --forced-package-id, 127, --min-sdk-version, 10, --target-sdk-version, 22, --version-code, 1, --version-name, null, --no-version-vectors, -F, C:\Users\****\AppData\Local\Temp\APKTOOL1017699121716064467.tmp, -0, arsc, -0, apk, -0, arsc, -I, C:\Users\****\AppData\Local\apktool\framework\1.apk, -S, C:\Building\apktool\app-release\res, -M, C:\Building\apktool\app-release\AndroidManifest.xml]
   at brut.androlib.res.AndrolibResources.aaptPackage(AndrolibResources.java:440)
   at brut.androlib.Androlib.buildResourcesFull(Androlib.java:463)
   ... 5 more
Caused by: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\****\AppData\Local\Temp\brut_util_Jar_8648192645053380914.tmp, p, --forced-package-id, 127, --min-sdk-version, 10, --target-sdk-version, 22, --version-code, 1, --version-name, null, --no-version-vectors, -F, C:\Users\****\AppData\Local\Temp\APKTOOL1017699121716064467.tmp, -0, arsc, -0, apk, -0, arsc, -I, C:\Users\****\AppData\Local\apktool\framework\1.apk, -S, C:\Building\apktool\app-release\res, -M, C:\Building\apktool\app-release\AndroidManifest.xml]
   at brut.util.OS.exec(OS.java:95)
   at brut.androlib.res.AndrolibResources.aaptPackage(AndrolibResources.java:434)
   ... 6 more

C:\Building\apktool>java -jar SignApk.jar certificate.pem key.pk8 app-release\dist\app-release.apk out\client.apk
java.io.FileNotFoundException: app-release\dist\app-release.apk (El sistema no puede encontrar la ruta especificada)
   at You are not allowed to view links. You are not allowed to view links. Register or Login or You are not allowed to view links. Register or Login(Native Method)

   at java.util.zip.ZipFile.<init>(Unknown Source)
   at java.util.zip.ZipFile.<init>(Unknown Source)
   at java.util.jar.JarFile.<init>(Unknown Source)
   at java.util.jar.JarFile.<init>(Unknown Source)
   at com.android.signapk.SignApk.main(SignApk.java:320)

Disculpen las molestias

Buenas, tengo una duda, cuando trato de crear el apk, me aparece este error:

Microsoft Windows [Versi¢n 6.1.7601]
"java" no se reconoce como un comando interno o externo,
Copyright (c) 2009 Microsoft Corporation. Reservados todos los derechos.
programa o archivo por lotes ejecutable.

C:\Users\****\Downloads\SpyNote5.0>java -version

alguno tiene idea de porque o la solucion?