Got a laptop that had IE10 (did have IE11 but still had same issue) that when I try to download a file it does it but then says that there is a signature problem and the only option is to Delete the file! I have tried setting IE to ignore signature errors and just download but it still happens! Googled it and a few relate it to a security update from MS but had a look and cant find the one referenced as being installed. Anyone had this before and found a solution?