bitlocker drive in my Local Services

I found a bitlocker drive in my Local Services while getting rid of McAfee. I have installed Avira instead - the cheapest one they offer.

Is this driver part of Windows 7 System or could it be the remains of an aborted try at installing BitLocker Security on my computer two or three weeks ago. (I decided it was too complex for me so I abandoned the attempt before I got to the shopping basket.)

Does it do any harm - or any good ? My instinct is to leave it alone.

Would be grateful for any advice. It doesn`t seem to be causing any trouble at the moment.

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Home Premium, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz, Intel64 Family 6 Model 58 Stepping 9
Processor Count: 4
RAM: 8122 Mb
Graphics Card: NVIDIA GeForce GT 620, 1024 Mb
Hard Drives: C: Total - 478823 MB, Free - 418576 MB; M: Total - 463041 MB, Free - 449572 MB;
Motherboard: MSI, B75MA-E33 (MS-7808)
Antivirus: AVG Anti-Virus 2013, Updated and Enabled