Please use the below method to remove all symbols from TrueData Velocity in one.
NOTE: Make sure you have removed those all the symbols from Amibroker (if you are using it), before removing them from Velocity. If you are using NinjaTrader, then directly follow the symbol removal method from Velocity.
Amibroker does provides option to select all the symbols and Delete them all in One-Go (make sure Velocity is closed, while Deleting symbols from Amibroker).
Once all the symbols has been removed from Amibroker > Close Amibroker
Remove all symbols from TrueData Velocity:
1) Go to "C:" drive of your computer
2) Program Files (x86)
3) TrueData (folder)
4) TrueData Velocity 2.0 (folder)
5) Open text file named > activesymbols.txt (snapshot below)
6) Now open activesymbols.txt file
7) Press "Ctrl+A" to select all the symbols in this file (snapshot below)
8) After selecting all the symbols > Press "Delete" > this will delete all the symbols in this file
9) Now, click on "Save" button to save the file (snapshot below)
10) Now Start "TrueData Velocity" and you will see all the symbols has been REMOVED from Velocity (snapshot below).
Hope this helps... In case you need any technical assistance, please connect with our LiveChat support team.