// Status=edited

For 64-bit Windows 10 and later: Download and execute the package file
{win64}. Install _WSJT-X_ into its own directory, for example
`C:\WSJTX` or `C:\WSJT\WSJTX`, rather than the conventional location +
`C:\Program Files ...\WSJTX`. All program files relating to _WSJT-X_
will be stored in the chosen installation directory and its
subdirectories. Logs and other writeable files are normally found in
the directory +
`C:\Users\<username>\AppData\Local\WSJT-X`.

TIP: Your computer may be configured so that this directory is
     "`invisible`".  It's there, however, and accessible.  An
     alternative (shortcut) directory name is
     `"%LocalAppData%\WSJT-X\"`.

* The built-in Windows facility for time synchronization may 
  not be adequate.  We recommend the program _Meinberg NTP Client_: see
  {ntpsetup} for downloading and installation instructions. Recent
  versions of Windows are now shipped with a more capable Internet
  time synchronization service that is suitable if configured
  appropriately. We do not recommend SNTP time setting tools or others
  that make periodic correction steps; _WSJT-X_ requires that the PC
  clock be monotonically increasing and smoothly continuous.

NOTE: Having a PC clock that appears to be synchronized to UTC is not
      sufficient.  "`Monotonically increasing`" means that the clock
      must not be stepped backwards. "`Smoothly continuous`" means
      that time must increase at a nearly constant rate, without
      steps.  Any necessary clock corrections must be applied by
      adjusting the rate of increase, thereby correcting
      synchronization errors gradually.

[[OPENSSL]]
  
* _WSJT-X_ uses the _OpenSSL_ libraries, and these are usually
installed by defajult. If an incompatible OpenSSL version is already
installed on your system. you will see the following error message
shortly after requesting a fetch of the latest LoTW users database. To
fix this problem, install the _OpenSSL_ libraries.

image::LoTW_TLS_error.png[align="center",alt="SSL/TLS"]

You can download a suitable _OpenSSL_ package for Windows from
{win_openssl_packages}; you need the latest *Windows Light*
version. For the 32-bit _WSJT-X_ build, use the latest Win32 v1.1.1
version of the _OpenSSL_ libraries, for the 64-bit _WSJT-X_ use the
latest Win64 v1.1.1 version of the _OpenSSL_ libraries (Note: it is OK
to install both versions on a 64-bit system) which, at the time of
writing, were {win32_openssl} and {win64_openssl} respectively.

Install the package and accept the default options, including the
option to copy the _OpenSSL_ DLLs to the Windows system
directory. There is no obligation to donate to the _OpenSSL_
project. Un-check all the donation options if desired. +

NOTE: If you still get the same network error after installing the
      _OpenSSL_ libraries then you also need to install the
      {msvcpp_redist} component. From the download page select
      `vcredist_x86.exe` for use with the 32-bit _WSJT-X_ build or
      `vcredist_x64.exe` with the 64-bit build, then run it to
      install.

TIP: If you cannot install the _OpenSSL_ libraries or do not have an
     Internet connection on the computer used to run
     _WSJT-X_ {VERSION_MAJOR}.{VERSION_MINOR}, you can download
     the _LoTW_ file manually. Go to
     https://lotw.arrl.org/lotw-user-activity.csv in a web browser,
     download the file, then move it to the _WSJT-X_ log files
     directory. This directory can be opened by selecting
     *File|Open log directory* from the main menu.

* _WSJT-X_ expects your sound card to do its raw sampling at 48000 Hz.
  To ensure that this will be so when running under recent versions of
  Windows, open the system's *Sound* control panel and select in turn
  the *Recording* and *Playback* tabs. Click *Properties*, then
  *Advanced*, and select *16 bit, 48000 Hz (DVD Quality)*. Switch off
  all audio enhancement features for these devices.

* You can uninstall _WSJT-X_ by clicking its *Uninstall* link in the
Windows *Start* menu, or by using *Uninstall a Program* on the
*Windows Control Panel | Programs and Features* option or in
*File | Settings | Apps*.
