There isn’t enough information to know what is going wrong.
For some reason, the chef-client command is not recognized.
What is the bootstrap command you are running?
Here is the bootstrap command I commonly use on windows 2012 R2
knife bootstrap windows winrm 192.0.2.0 -N webserver-foo -x foo -P xxxxxx -r "role[foobar]" -E dev -V
If you have problems with winrm, sometimes this can help
knife bootstrap windows winrm ADDRESS --winrm-user USER --winrm-password 'PASSWORD' --node-name node1 --run-list 'recipe[foobar],role[foobar]' --winrm-transport ssl --winrm-ssl-verify-mode verify_none -E dev