Trying to remove git repo on ubuntu guest

So I figured it out. The problem was that on my host machine (windows 7 x64) this folder was allowed to read only. I disabled it, and removed it from the host machine. Sorry for not saying that it was mounted, and thanks for all replies : )

1. Close any git clients that might be running.

2. Set the permissions to delete first:

   chmod -R 777 folder
   

3. Try to force the deletion:

   rm -rf folder
   

The following command may help:

chmod -R u+w folder/

Also make sure you own all the files which you're trying to remove:

chown -R $USER folder/

On Linux it may be also a file attribute (check by lsattr):

chattr -R -AacdDijsStu folder/