MongoDB does not start after installing first time - mongodb

Question

I am trying to install MongoDB first time on my Windows 7 machine. I am installing it to default location (c:/).
When I execute the mongod.exe first time, I get the message 'the waiting for connections message in the console'. The documentation of MongoDB asks to connect on another cmd prompt and execute mongod.exe again.
When I do this I get the following message:
C:\Program Files\MongoDB\Server\3.0\bin>mongod.exe
2015-09-04T11:31:23.880+0530 I CONTROL Hotfix KB2731284 or later update is not installed, will zero-out data files
2015-09-04T11:31:23.905+0530 W - [initandlisten] Detected unclean shutdown - C:\data\db\mongod.lock is not empty.
2015-09-04T11:31:23.907+0530 I STORAGE [initandlisten] exception in initAndListen: 98 Unable to create/open lock file:
C:\data\db\mongod.lock errno:32 The process cannot access the file because it is being used by another process.. Is a mo
ngod instance already running?, terminating
2015-09-04T11:31:23.907+0530 I CONTROL [initandlisten] dbexit: rc: 100
C:\Program Files\MongoDB\Server\3.0\bin>mongod.exe
2015-09-04T11:33:52.437+0530 I CONTROL Hotfix KB2731284 or later update is not installed, will zero-out data files
2015-09-04T11:33:52.442+0530 W - [initandlisten] Detected unclean shutdown - C:\data\db\mongod.lock is not empty.
2015-09-04T11:33:52.445+0530 I STORAGE [initandlisten] exception in initAndListen: 98 Unable to create/open lock file:
C:\data\db\mongod.lock errno:32 The process cannot access the file because it is being used by another process.. Is a mo
ngod instance already running?, terminating
2015-09-04T11:33:52.445+0530 I CONTROL [initandlisten] dbexit: rc: 100
P.S.: I have created /data/db in C:/.

Answer 1

Well, I just faced the same issue. I installed the fix, but saw nothing but same error. So that's how I got over it: just create a folder structure in your C catalog like this one: C:\data\db. So it worked for me perfectly. I use Windows 7 x64.