error "check if drive is not full or write Protected"

[delmaryoder]

After installing avg antivirus,I cant install any program in my usb drive.But I i can transfer files normally? It gives an error "check if drive is not full or write Protected" Is it because of avg antivirus? If it is or of it is not,How can I remove this restriction of my USB being write protected from installing applications?

[Bill_S]

What OS are you using?

[shondabean]

It seems your usb drive was virus infected.when you installed AVG,perhaps it deleted system files from your USB which makes error. write protection is a serious problem for pen drive.It's rare case.My pen drive is now write protected after installing Win vista.I did not get rid of it. but some sites offer "write protection remover tool".i have not tried yet.