if ur system is infected by happy birthday virus
ur system can't see folder option, task manager and can't open registry
to cure follow these steps
1. open Run windows
2. type gpedit.msc
in the tree panel
3. click user configuration\ administrative templete\system
double click at prevent acess to registry editor
4. click enable
5. click apply
6. open Run windows type gpupdate
7. double click prevent acess to registry editor
8. cilck not configure
9. click apply
10. open Run windows type gpupdate
then registry editor will be used
to open task manager
ctrl+alt+del option\task manager
to see the folder option
user configuretion\window computent\window explorer\
show folder option
and repeat step 4. to 10
after these steps ur system is in normal
try it!
thank u all my fri!
i will try my best!