The adb.exe file will be located at your Android SDK folder, inside platform-tools
...android-sdk-pathplatform-toolsadb.exe
The default location where Android SDK is installed is:
C:Users<insert username here>AppDataLocalAndroidsdk
So adb will be located at:
C:Users<insert username here>AppDataLocalAndroidsdkplatform-toolsadb.exe
To access it on a command line, open cmd.exe and type:
cd C:Users<insert username here>AppDataLocalAndroidsdkplatform-tools
and then your normal command
adb <insert parameters here>
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