Windows 7 App Data Questions

[cgrim29588]

I was going through my AppData folder and I open the AppData>Local folder and see the following folders than when I open them they are empty:

{3F617EAA-39E3-499D-BA42-9FA9E5D6F36E}
{80A4F4CD-BE4A-471C-8D40-A6B4C04B053A}
{86E35F0C-2763-41CB-BD1E-4C614B3907DA}
{91FCAB48-775C-4123-B43D-60B3D1216C0F}
{94B2E9C1-0374-45E0-A5D2-68CF99466696}
{136A2F8B-2D2B-4648-97A2-D4610B099845}
{AC5CFE5C-2B9C-4301-AED6-4D8350F5B9EC}
{B9B0BC29-1809-4E44-8930-ACFB0F49776B}
{BA107AA5-8BEE-4868-9CF6-8339D0E4EDEF}
{E8E0306F-EC87-427C-A305-7CD836B826D3}
{EBBA92D4-5312-4D12-A69F-EC88E856B8BD}

So my questions are: what are they for? What program or programs are creating them? Is it okay to delete them? Is it okay to delete stuff in the AppData folder for programs I don't use anymore?

 

[davehc]

If you examine them, you will find they are all empty. They are created mainly from the use of the Windows Live mail, Outlook and, sometimes, as a result of new installations. They are 100% safe to delete.
Fwiw. They are "hidden" folders/files, and , on the installation defaults, would not be visible to the average user. As empty folders, theye are not using any resources and are only "visual" clutter.