WU doesn't depend on it, but does install updates for it - but there appear to be other programs that do use at least some version of .NET (ELG ??)
There are a number of errors in the log - I'm not sure of their significance....
Code:
Line 470: [04/20/13,10:37:53] ****ERROR**** MoveFileEx failed for 'C:\Windows\system32\mscorier.dll' with error code 5 - Access is denied.
Line 470: [04/20/13,10:37:53] ****ERROR**** MoveFileEx failed for 'C:\Windows\system32\mscorier.dll' with error code 5 - Access is denied.
Line 473: [04/20/13,10:37:56] ****ERROR**** MoveFileEx failed for 'C:\Windows\system32\mscories.dll' with error code 5 - Access is denied.
Line 473: [04/20/13,10:37:56] ****ERROR**** MoveFileEx failed for 'C:\Windows\system32\mscories.dll' with error code 5 - Access is denied.
Line 477: [04/20/13,10:37:58] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\NETFXSBS10.exe' with error code 5 - Access is denied.
Line 477: [04/20/13,10:37:58] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\NETFXSBS10.exe' with error code 5 - Access is denied.
Line 481: [04/20/13,10:38:01] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_diasymreader.dll' with error code 5 - Access is denied.
Line 481: [04/20/13,10:38:01] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_diasymreader.dll' with error code 5 - Access is denied.
Line 484: [04/20/13,10:38:03] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_iehost.dll' with error code 5 - Access is denied.
Line 484: [04/20/13,10:38:03] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_iehost.dll' with error code 5 - Access is denied.
Line 487: [04/20/13,10:38:06] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_microsoft.jscript.dll' with error code 5 - Access is denied.
Line 487: [04/20/13,10:38:06] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_microsoft.jscript.dll' with error code 5 - Access is denied.
Line 490: [04/20/13,10:38:08] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_microsoft.vsa.vb.codedomprocessor.dll' with error code 5 - Access is denied.
Line 490: [04/20/13,10:38:08] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_microsoft.vsa.vb.codedomprocessor.dll' with error code 5 - Access is denied.
Line 493: [04/20/13,10:38:11] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_mscordbi.dll' with error code 5 - Access is denied.
Line 493: [04/20/13,10:38:11] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_mscordbi.dll' with error code 5 - Access is denied.
Line 496: [04/20/13,10:38:13] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_mscorrc.dll' with error code 5 - Access is denied.
Line 496: [04/20/13,10:38:13] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_mscorrc.dll' with error code 5 - Access is denied.
Line 499: [04/20/13,10:38:16] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_mscorsec.dll' with error code 5 - Access is denied.
Line 499: [04/20/13,10:38:16] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_mscorsec.dll' with error code 5 - Access is denied.
Line 502: [04/20/13,10:38:18] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_system.configuration.install.dll' with error code 5 - Access is denied.
Line 502: [04/20/13,10:38:18] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_system.configuration.install.dll' with error code 5 - Access is denied.
Line 505: [04/20/13,10:38:21] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_system.data.dll' with error code 5 - Access is denied.
Line 505: [04/20/13,10:38:21] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_system.data.dll' with error code 5 - Access is denied.
Line 508: [04/20/13,10:38:23] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_system.enterpriseservices.dll' with error code 5 - Access is denied.
Line 508: [04/20/13,10:38:23] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_system.enterpriseservices.dll' with error code 5 - Access is denied.
Line 511: [04/20/13,10:38:26] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_VsaVb7rt.dll' with error code 5 - Access is denied.
Line 511: [04/20/13,10:38:26] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_VsaVb7rt.dll' with error code 5 - Access is denied.
Line 514: [04/20/13,10:38:28] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_wminet_utils.dll' with error code 5 - Access is denied.
Line 514: [04/20/13,10:38:28] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbs_wminet_utils.dll' with error code 5 - Access is denied.
Line 517: [04/20/13,10:38:31] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbscmp10.dll' with error code 5 - Access is denied.
Line 517: [04/20/13,10:38:31] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\sbscmp10.dll' with error code 5 - Access is denied.
Line 522: [04/20/13,10:38:33] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\v1.0.3705\mscormmc.dll' with error code 5 - Access is denied.
Line 522: [04/20/13,10:38:33] ****ERROR**** MoveFileEx failed for 'C:\Windows\Microsoft.NET\Framework\v1.0.3705\mscormmc.dll' with error code 5 - Access is denied.
S
These entries are actually for .NET 1.1
There are also a lot of errors in your event logs for Office SIP