Check this location
copy all files from your working windows's acc(From new acc) and paste in your acc's SendTo folderOr2.
Download the attachment
Extarct all file to desktop > Go to Properties(on every file one by one) > Genrel Tab > Click on "Unblock"
if "Unblock" is not available there than go to next point Or3.
Copy all file from extracted .Zip file and paste to SendTo Folder
Click on Start type shell:sendto
Or Go to C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Windows\SendTo
and paste there
if you want to remove any entry than just delete that shortcut .