ULS viewer is showing blank data when we use RealTime option

If your ULS viewer  (download from here ) shows blank data when you use "RealTime" as below

then try the following.

Option #1: Clear everything from logs folder

1. Go to  Services.msc
2. Stop the "Sharepoint Tracing Service"
3. Navigate to C:\Program Files\Common Files\microsoft shared\Web Server Extensions\15\LOGS and clear everything.
4. Start the "Sharepoint Tracing Service"
5. Try to open ULSViewer and check for real-time logs


In case, if you still face the issue, try the next option

Option #2 : Change the default location of ULS log

1. Go to Central admin site
2. Got to Monitoring -> Configure Diagnostic logging
3. Change the "Trace Log Path" to any folder, say C:\ULSLogs
4. Try to open ULSViewer and check for real-time logs


Hope it helps !!