title: How do I install the most recent Tensorflow (here: 2.2) on Windows when conda does not yet support it?
body: <p>I have conda 4.8.3 and Python 3.7.4 on Windows 8.1.</p>
  <p>I have tf 2.0.0 installed in a conda environment. How do I upgrade to 2.2.x?</p>
  <p>Or, how do I just install 2.2.x in a conda environment?</p>
  <p>Edit 1: pip install --upgrade tensorflow says: <code>Requirement already up-to-date: tensorflow in d:\anaconda3\envs\tf2\lib\site-packages (2.1.0)</code></p>
  <p>but tf version is still 2.0.</p>
  <p>Edit 2: conda install tensorflow==2.2.0 says:</p>
  <pre><code>PackagesNotFoundError: The following packages are not available from current channels:
  </code></pre>
  <ul>
  <li>tensorflow==2.2.0</li>
  </ul>
  <p>I did have some luck <a href="https://stackoverflow.com/questions/62376660/installing-tensorflow-2-gets-a-dll-failed-to-load-in-pywrap-tensorflow-py">here</a>.</p>
  <p>Edit 3:</p>
  <pre><code>(tf2) D:\ray\dev\covid-19&gt;conda list -n tf2
  # packages in environment at D:\Anaconda3\envs\tf2:
  #
  # Name                    Version                   Build  Channel
  _anaconda_depends         2019.03                  py37_0
  _ipyw_jlab_nb_ext_conf    0.1.0                    py37_0
  _tflow_select             2.3.0                       mkl
  absl-py                   0.9.0                    pypi_0    pypi
  alabaster                 0.7.12                   py37_0
  anaconda                  custom                   py37_1
  anaconda-client           1.7.2                    py37_0
  anaconda-navigator        1.9.7                    py37_0
  anaconda-project          0.8.3                      py_0
  asn1crypto                1.0.1                    py37_0
  astor                     0.8.1                    pypi_0    pypi
  astroid                   2.3.1                    py37_0
  astropy                   3.2.1            py37he774522_0
  atomicwrites              1.3.0                    py37_1
  attrs                     19.2.0                     py_0
  babel                     2.7.0                      py_0
  backcall                  0.1.0                    py37_0
  backports                 1.0                        py_2
  backports.functools_lru_cache 1.5                        py_2
  backports.os              0.1.1                    py37_0
  backports.shutil_get_terminal_size 1.0.0                    py37_2
  backports.tempfile        1.0                        py_1
  backports.weakref         1.0.post1                  py_1
  beautifulsoup4            4.8.0                    py37_0
  bitarray                  1.0.1            py37he774522_0
  bkcharts                  0.2                      py37_0
  blas                      1.0                         mkl
  bleach                    3.1.0                    py37_0
  blosc                     1.16.3               h7bd577a_0
  bokeh                     1.3.4                    py37_0
  boto                      2.49.0                   py37_0
  bottleneck                1.2.1            py37h452e1ab_1
  bzip2                     1.0.8                he774522_0
  ca-certificates           2020.1.1                      0
  cachetools                4.0.0                    pypi_0    pypi
  certifi                   2019.9.11                py37_0
  cffi                      1.12.3           py37h7a1dbc1_0
  chardet                   3.0.4                 py37_1003
  click                     7.0                      py37_0
  cloudpickle               1.2.2                      py_0
  clyent                    1.2.2                    py37_1
  colorama                  0.4.1                    py37_0
  comtypes                  1.1.7                    py37_0
  conda-package-handling    1.6.0            py37h62dcd97_0
  conda-verify              3.4.2                      py_1
  console_shortcut          0.1.1                         3
  contextlib2               0.6.0                      py_0
  cryptography              2.7              py37h7a1dbc1_0
  curl                      7.65.3               h2a8f88b_0
  cycler                    0.10.0                   py37_0
  cython                    0.29.13          py37ha925a31_0
  cytoolz                   0.10.0           py37he774522_0
  dask                      2.5.2                      py_0
  dask-core                 2.5.2                      py_0
  decorator                 4.4.0                    py37_1
  defusedxml                0.6.0                      py_0
  dill                      0.3.1.1                  pypi_0    pypi
  distributed               2.5.2                      py_0
  docutils                  0.15.2                   py37_0
  entrypoints               0.3                      py37_0
  et_xmlfile                1.0.1                    py37_0
  fastcache                 1.1.0            py37he774522_0
  filelock                  3.0.12                     py_0
  flask                     1.1.1                      py_0
  freetype                  2.9.1                ha9979f8_1
  fsspec                    0.5.2                      py_0
  future                    0.17.1                   py37_0
  gast                      0.2.2                    pypi_0    pypi
  get_terminal_size         1.0.0                h38e98db_0
  gevent                    1.4.0            py37he774522_0
  glob2                     0.7                        py_0
  google-auth               1.11.0                   pypi_0    pypi
  google-auth-oauthlib      0.4.1                    pypi_0    pypi
  google-pasta              0.1.8                      py_0
  googleapis-common-protos  1.51.0                   pypi_0    pypi
  greenlet                  0.4.15           py37hfa6e2cd_0
  grpcio                    1.26.0                   pypi_0    pypi
  h5py                      2.9.0            py37h5e291fa_0
  hdf5                      1.10.4               h7ebc959_0
  heapdict                  1.0.1                      py_0
  html5lib                  1.0.1                    py37_0
  icc_rt                    2019.0.0             h0cc432a_1
  icu                       58.2                 ha66f8fd_1
  idna                      2.8                      py37_0
  imageio                   2.6.0                    py37_0
  imagesize                 1.1.0                    py37_0
  importlib_metadata        0.23                     py37_0
  intel-openmp              2019.4                      245
  ipykernel                 5.1.2            py37h39e3cac_0
  ipython                   7.8.0            py37h39e3cac_0
  ipython_genutils          0.2.0                    py37_0
  ipywidgets                7.5.1                      py_0
  isort                     4.3.21                   py37_0
  itsdangerous              1.1.0                    py37_0
  jdcal                     1.4.1                      py_0
  jedi                      0.15.1                   py37_0
  jinja2                    2.10.3                     py_0
  joblib                    0.13.2                   py37_0
  jpeg                      9b                   hb83a4c4_2
  json5                     0.8.5                      py_0
  jsonschema                3.0.2                    py37_0
  jupyter                   1.0.0                    py37_7
  jupyter_client            5.3.3                    py37_1
  jupyter_console           6.0.0                    py37_0
  jupyter_core              4.5.0                      py_0
  jupyterlab                1.1.4              pyhf63ae98_0
  jupyterlab_server         1.0.6                      py_0
  keras                     2.3.1            py37h21ff451_0    conda-forge
  keras-applications        1.0.8                      py_0
  keras-preprocessing       1.1.0                      py_1
  keyring                   18.0.0                   py37_0
  kiwisolver                1.1.0            py37ha925a31_0
  krb5                      1.16.1               hc04afaa_7
  lazy-object-proxy         1.4.2            py37he774522_0
  libarchive                3.3.3                h0643e63_5
  libcurl                   7.65.3               h2a8f88b_0
  libgpuarray               0.7.6                hfa6e2cd_0
  libiconv                  1.15                 h1df5818_7
  liblief                   0.9.0                ha925a31_2
  libmklml                  2019.0.5                      0
  libpng                    1.6.37               h2a8f88b_0
  libprotobuf               3.11.2               h7bd577a_0
  libpython                 2.1                      py37_0
  libsodium                 1.0.16               h9d3ae62_0
  libssh2                   1.8.2                h7a1dbc1_0
  libtiff                   4.0.10               hb898794_2
  libxml2                   2.9.9                h464c3ec_0
  libxslt                   1.1.33               h579f668_0
  llvmlite                  0.29.0           py37ha925a31_0
  locket                    0.2.0                    py37_1
  lxml                      4.4.1            py37h1350720_0
  lz4-c                     1.8.1.2              h2fa13f4_0
  lzo                       2.10                 h6df0209_2
  m2w64-binutils            2.25.1                        5
  m2w64-bzip2               1.0.6                         6
  m2w64-crt-git             5.0.0.4636.2595836               2
  m2w64-gcc                 5.3.0                         6
  m2w64-gcc-ada             5.3.0                         6
  m2w64-gcc-fortran         5.3.0                         6
  m2w64-gcc-libgfortran     5.3.0                         6
  m2w64-gcc-libs            5.3.0                         7
  m2w64-gcc-libs-core       5.3.0                         7
  m2w64-gcc-objc            5.3.0                         6
  m2w64-gmp                 6.1.0                         2
  m2w64-headers-git         5.0.0.4636.c0ad18a               2
  m2w64-isl                 0.16.1                        2
  m2w64-libiconv            1.14                          6
  m2w64-libmangle-git       5.0.0.4509.2e5a9a2               2
  m2w64-libwinpthread-git   5.0.0.4634.697f757               2
  m2w64-make                4.1.2351.a80a8b8               2
  m2w64-mpc                 1.0.3                         3
  m2w64-mpfr                3.1.4                         4
  m2w64-pkg-config          0.29.1                        2
  m2w64-toolchain           5.3.0                         7
  m2w64-tools-git           5.0.0.4592.90b8472               2
  m2w64-windows-default-manifest 6.4                           3
  m2w64-winpthreads-git     5.0.0.4634.697f757               2
  m2w64-zlib                1.2.8                        10
  mako                      1.1.0                      py_0
  markdown                  3.1.1                    py37_0
  markupsafe                1.1.1            py37he774522_0
  matplotlib                3.1.1            py37hc8f65d3_0
  mccabe                    0.6.1                    py37_1
  menuinst                  1.4.16           py37he774522_0
  mistune                   0.8.4            py37he774522_0
  mkl                       2019.4                      245
  mkl-service               2.3.0            py37hb782905_0
  mkl_fft                   1.0.14           py37h14836fe_0
  mkl_random                1.1.0            py37h675688f_0
  mock                      3.0.5                    py37_0
  more-itertools            7.2.0                    py37_0
  mpmath                    1.1.0                    py37_0
  msgpack-python            0.6.1            py37h74a9793_1
  msys2-conda-epoch         20160418                      1
  multipledispatch          0.6.0                    py37_0
  navigator-updater         0.2.1                    py37_0
  nbconvert                 5.6.0                    py37_1
  nbformat                  4.4.0                    py37_0
  networkx                  2.3                        py_0
  nltk                      3.4.5                    py37_0
  nose                      1.3.7                    py37_2
  notebook                  6.0.1                    py37_0
  numba                     0.45.1           py37hf9181ef_0
  numexpr                   2.7.0            py37hdce8814_0
  numpy                     1.16.5           py37h19fb1c0_0
  numpy-base                1.16.5           py37hc3f5095_0
  numpydoc                  0.9.1                      py_0
  oauthlib                  3.1.0                    pypi_0    pypi
  olefile                   0.46                     py37_0
  openpyxl                  3.0.0                      py_0
  openssl                   1.1.1d               he774522_3
  opt_einsum                3.1.0                      py_0
  packaging                 19.2                       py_0
  pandas                    0.25.1                   pypi_0    pypi
  pandoc                    2.2.3.2                       0
  pandocfilters             1.4.2                    py37_1
  parso                     0.5.1                      py_0
  partd                     1.0.0                      py_0
  path.py                   12.0.1                     py_0
  pathlib2                  2.3.5                    py37_0
  patsy                     0.5.1                    py37_0
  pep8                      1.7.1                    py37_0
  pickleshare               0.7.5                    py37_0
  pillow                    6.2.0            py37hdc69c19_0
  pip                       20.0.2                   pypi_0    pypi
  pkginfo                   1.5.0.1                  py37_0
  pluggy                    0.13.0                   py37_0
  ply                       3.11                     py37_0
  powershell_shortcut       0.0.1                         2
  prometheus_client         0.7.1                      py_0
  promise                   2.3                      pypi_0    pypi
  prompt_toolkit            2.0.10                     py_0
  protobuf                  3.11.2                   pypi_0    pypi
  psutil                    5.6.3            py37he774522_0
  py                        1.8.0                    py37_0
  py-lief                   0.9.0            py37ha925a31_2
  pyasn1                    0.4.8                    pypi_0    pypi
  pyasn1-modules            0.2.8                    pypi_0    pypi
  pycodestyle               2.5.0                    py37_0
  pycosat                   0.6.3            py37hfa6e2cd_0
  pycparser                 2.19                     py37_0
  pycrypto                  2.6.1            py37hfa6e2cd_9
  pycurl                    7.43.0.3         py37h7a1dbc1_0
  pyflakes                  2.1.1                    py37_0
  pygments                  2.4.2                      py_0
  pygpu                     0.7.6            py37h452e1ab_0
  pylint                    2.4.2                    py37_0
  pyodbc                    4.0.27           py37ha925a31_0
  pyopenssl                 19.0.0                   py37_0
  pyparsing                 2.4.2                      py_0
  pyqt                      5.9.2            py37h6538335_2
  pyreadline                2.1                      py37_1
  pyrsistent                0.15.4           py37he774522_0
  pysocks                   1.7.1                    py37_0
  pytables                  3.5.2            py37h1da0976_1
  pytest                    5.2.1                    py37_0
  pytest-arraydiff          0.3              py37h39e3cac_0
  pytest-astropy            0.5.0                    py37_0
  pytest-doctestplus        0.4.0                      py_0
  pytest-openfiles          0.4.0                      py_0
  pytest-remotedata         0.3.2                    py37_0
  python                    3.7.4                h5263a28_0
  python-dateutil           2.8.0                    py37_0
  python-libarchive-c       2.8                     py37_13
  pytz                      2019.3                     py_0
  pywavelets                1.0.3            py37h8c2d366_1
  pywin32                   223              py37hfa6e2cd_1
  pywinpty                  0.5.5                 py37_1000
  pyyaml                    5.1.2            py37he774522_0
  pyzmq                     18.1.0           py37ha925a31_0
  qt                        5.9.7            vc14h73c81de_0
  qtawesome                 0.6.0                      py_0
  qtconsole                 4.5.5                      py_0
  qtpy                      1.9.0                      py_0
  requests                  2.22.0                   py37_0
  requests-oauthlib         1.3.0                    pypi_0    pypi
  rope                      0.14.0                     py_0
  rsa                       4.0                      pypi_0    pypi
  ruamel_yaml               0.15.46          py37hfa6e2cd_0
  scikit-image              0.15.0           py37ha925a31_0
  scikit-learn              0.21.3           py37h6288b17_0
  scipy                     1.4.1                    pypi_0    pypi
  seaborn                   0.9.0                    py37_0
  send2trash                1.5.0                    py37_0
  setuptools                41.4.0                   py37_0
  simplegeneric             0.8.1                    py37_2
  singledispatch            3.4.0.3                  py37_0
  sip                       4.19.8           py37h6538335_0
  six                       1.12.0                   py37_0
  sklearn                   0.0                      pypi_0    pypi
  snappy                    1.1.7                h777316e_3
  snowballstemmer           2.0.0                      py_0
  sortedcollections         1.1.2                    py37_0
  sortedcontainers          2.1.0                    py37_0
  soupsieve                 1.9.3                    py37_0
  sphinx                    2.2.0                      py_0
  sphinxcontrib             1.0                      py37_1
  sphinxcontrib-applehelp   1.0.1                      py_0
  sphinxcontrib-devhelp     1.0.1                      py_0
  sphinxcontrib-htmlhelp    1.0.2                      py_0
  sphinxcontrib-jsmath      1.0.1                      py_0
  sphinxcontrib-qthelp      1.0.2                      py_0
  sphinxcontrib-serializinghtml 1.1.3                      py_0
  sphinxcontrib-websupport  1.1.2                      py_0
  spyder                    3.3.6                    py37_0
  spyder-kernels            0.5.2                    py37_0
  sqlalchemy                1.3.9            py37he774522_0
  sqlite                    3.30.0               he774522_0
  statsmodels               0.10.1           py37h8c2d366_0
  sympy                     1.4                      py37_0
  tbb                       2019.4               h74a9793_0
  tblib                     1.4.0                      py_0
  tensorboard               2.1.0                    pypi_0    pypi
  tensorflow                2.1.0                    pypi_0    pypi
  tensorflow-base           2.0.0           mkl_py37hd1d5974_0
  tensorflow-datasets       2.0.0                    pypi_0    pypi
  tensorflow-estimator      2.1.0                    pypi_0    pypi
  tensorflow-metadata       0.21.1                   pypi_0    pypi
  termcolor                 1.1.0                    pypi_0    pypi
  terminado                 0.8.2                    py37_0
  testpath                  0.4.2                    py37_0
  theano                    1.0.4                    py37_0
  tk                        8.6.8                hfa6e2cd_0
  toolz                     0.10.0                     py_0
  tornado                   6.0.3            py37he774522_0
  tqdm                      4.36.1                     py_0
  traitlets                 4.3.3                    py37_0
  unicodecsv                0.14.1                   py37_0
  urllib3                   1.24.2                   py37_0
  vc                        14.1                 h0510ff6_4
  vs2015_runtime            14.16.27012          hf0eaf9b_0
  wcwidth                   0.1.7                    py37_0
  webencodings              0.5.1                    py37_1
  werkzeug                  0.16.0                     py_0
  wheel                     0.33.6                   py37_0
  widgetsnbextension        3.5.1                    py37_0
  win_inet_pton             1.1.0                    py37_0
  win_unicode_console       0.5                      py37_0
  wincertstore              0.2                      py37_0
  winpty                    0.4.3                         4
  wrapt                     1.11.2           py37he774522_0
  xlrd                      1.2.0                    py37_0
  xlsxwriter                1.2.1                      py_0
  xlwings                   0.15.10                  py37_0
  xlwt                      1.3.0                    py37_0
  xz                        5.2.4                h2fa13f4_4
  yaml                      0.1.7                hc54c509_2
  zeromq                    4.3.1                h33f27b4_3
  zict                      1.0.0                      py_0
  zipp                      0.6.0                      py_0
  zlib                      1.2.11               h62dcd97_3
  zstd                      1.3.7                h508b16e_0
  </code></pre>