Dear Ramesh - Thank you for your clarification. In my case I deleted the "Ghost" icons (no warning was posted by Windows!) and then discovered that I was deleting system files. Am now re-installing Windows 7 64 bit on my new machine to replace the mising
files.
Here's the problem though. In order to easily back up my Outlook PST files onto a memory stick or transfer them from PC to PC I need to visualize the Appdata folder so that I can locate the .pst files and drag them onto the storage media. In Windows 7 64 bit,
the only way to visualize the Appdata folder is precisely to set the view option to SHOW PROTECTED OPERATING SYSTEM FILES!
You may want to correct the situation, either by preventing system files from appearing on the desktop (as is the case with Windows XP even when system files are visualized), or by flashing a big warning notice when one is about to delete a system file from
the desktop, or by allowing the Appdata folder to be visualized in Windows Explorer when the system files are hidden.
Thank you for the opportunity to vent my frustrations!!
AAFlier