Help with cmputer issue

This isn't a security issue, but the knowledge here may help me with problem I am having. I cannot rename a file I just created, or delete it....it says that either it is write protect or the disk is full......and the disk isn't full......this just started hapening in the last few days.....I don't know what to do.....any Ideas?
Thanks, Fr Steve

 

Hi, could you give me some details;

Type of file- .exe, jpg, etc
Location- where is it located
Size



Did you also rename the file extension?

 

I think I just solved it, It was my Extendia AV.....I had the file recognition on "program files only" as per advice from Extendia tech, to expidite the start up of applications.....It's kind of odd that this would cause that to happen.......or maybe not, because it says that the file is either write protected or in use, but it still seems odd that this setting would cause this.....it also prevented me from saving my preferences in firefox, but with the "automatic file recognition" instead of"program files only" I can save my rename,prefs ect. Any I deas why this is happening?

 

Glad to hear the problem is solved.