Merge pull request microsoft#7 from Microsoft/BluetoothTracingUpdate

Bluetooth tracing update

bluetooth/tracing/readme.md

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+# How to collect bluetooth logs
+
+## More info
+wpr.exe is available on all version of windows. More details can be found [here.](https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-8.1-and-8/hh448229%28v%3dwin.10%29)
+
+wpr.exe /? will also give you more information.
+
+## Collecting logs
+
+From an administrator command prompt: 
+1. Run as admin: "wpr.exe -start BluetoothStack.wprp"
+2. Toggle the Bluetooth radio off-on via the quick action menu or force a power cycle of the remote device (we want the connection information).
+3. Reproduce the issue.
+4. Run as admin: "wpr.exe -stop bth_tracing.etl"
+
+*Note: This will not continue tracing after a reboot*
+
+## Collecting logs across reboots
+From an administrator command prompt: 
+1. Run as admin: "wpr.exe -boottrace -addboot BluetoothStack.wprp"
+2. Reboot machine 
+  * Trace is not running until you reboot the machine
+3. Reproduce the issue - log will keep running across reboots until you stop it manually
+4. Run as admin: "wpr.exe -boottrace -stopboot bth_tracing.etl"
+
+## Collecting logs for driver or setup issues
+* Attach c:\windows\inf\setupapi.*.log and c:\Windows\Panther\setupact.log and c:\windows\logs\windowsupdate\* to the bug.
+* Attach Microsoft-Windows-Kernel-PnP%4Configuration.evtx (In event viewer as Microsoft-Windows-Kernel-PnP\Configuration).