Not able to view the c:windows folder?..reg

[roonie]

5 days back i re-installed xp..Today i suddenly found tat am not able to access the windows folder ...
See the screenshot below

Is dis a virus or anything?
please help

In most cases we can clik the show hidden files as far as i know to view the files but here am not able to click it...wat should i do?...And somekinda colour in the corner of this folder alone

 

[mrintech]

Maybe it's a virus/trojan

Have a scan with: http://www.superantispyware.com/download.html

Update the definition file completely and go for full system scan