Huge files in c:\windows in the form "c:\Windows\{159EADC2-B1B9-12E4-B09C-1D6F65AB96F0}"

These files are created by Acronis, right?

If so then why aren't they deleted - there are multi GB filesizes there.

c:\Windows\{158EADC1-B1B8-B1E4-B08C-1C6F684B96F0} 605,184

c:\Windows\{258EADE9-B2B8-18E4-B08C-1B6F65ABE6F0} 578,048

c:\Windows\{3211A589-7763-61E5-B0E3-1C6F65AF96F0} 4,096,760,832

c:\Windows\{8E664FA4-724A-11F5-B0E2-1D6F65AB96F0} 1,352,118,784

c:\Windows\{D3621EC7-B86B-11F1-80AB-00241D23F809} 1,851,904

c:\Windows\{C3919CBF-AFC6-51E4-B08A-1C6F65AB96F0} 458,752

c:\Windows\{DE779690-B876-15E1-8273-00241D23F809} 2,456,576

c:\Windows\{F4343E04-EED0-11E4-B0A5-4C6F65AC96F0} 529,408

c:\Windows\{F4343E1C-EED0-11E4-B0A5-1C6F65AB96F0} 413,184