Update startup-troubleshooting.md

content/faq/startup-troubleshooting.md

@@ -20,6 +20,7 @@ LBRY operates on a couple of different ports, and if there are conflicts/firewal
 
 ### This is my first time running LBRY, and it won't start
 - If don't see the LBRY app starting up at all on Windows, run LBRY.exe with CMD (command prompt) to further debug the problem. Navigate to the installation path e.g. `C:\Program Files\LBRY` for x64 and `C:\Program Files (x86)\LBRY` for x86, type `LBRY.exe` and hit enter for the app to launch. This will show any errors the app has starting up. The most common issue [is related to incorrect Windows environment variables](https://superuser.com/questions/1178674/wmic-is-not-recognized-as-an-internal-or-external-command-operable-program-or/1178758).
+- Windows users who have trouble starting up the [SDK manually](https://lbry.com/faq/how-to-run-lbry), you may need to reinstall [Visual C++ Redistributable for Visual Studio 2015](https://www.microsoft.com/en-US/download/details.aspx?id=48145)
 - Port 3333 already in use. This issue would reveal itself in the log file. You can see how to change this port [here](/faq/how-to-change-port). If the port is properly forwarding, you are able to successfully see port 3333 open on this [port checker tool](http://www.canyouseeme.org).
 - Port 50001 wallet connection fails. This issue would reveal itself in the log file. Typical things to check would be firewall/security settings that may block this connection.
 - On Linux, LBRY may fail to start (home page won't load or missing authentication token in Help) because of missing authentication capability. Please see [GitHub issue](https://github.com/lbryio/lbry-desktop/issues/386) or a possible workaround below.