Visual Studio 2012 Ultimate slow while editing C# code -

i've checked number of articles disabling graphics acceleration, turning off intellitrace, , using sysinternals process monitor (procmon) , @ loss how find out causing editor ridiculously slow. procmon shows devenv.exe:

performing large number of "notifychangedirectory" against "c:\", "c:\users\my_user_name" (and random files project), and

registry operations (regquerykey, regsetinfokey, regqueryvalue, regclosekey) against:

• hklm\software\wow6432node\microsoft\cryptography\defaults*,
• hkcu\software\microsoft\visualstudio\11.0\general\autorecover*,
• hkcu\software\microsoft\visualstudio\11.0\filemrulist,
• hkcr\drive\shellex\folderextensions, hkcu\software\classes

and performs file open , close operations (seemingly random) against files in project.

this happens single project , 1 instance of visual studio 2012 professional open. have ideas?

edit: on intel i7 machine 16gb of ram , ssd. task manager doesn't indicate cpu utilization, memory, or disk issue. intellitrace disabled. graphics acceleration disabled. visual studio 2012 ultimate.

edit: went new machine , happens there, too. now, in visual studio 2013.

it may many other things, in case assembly binding log (fusion logs) enabled slow down vs.

see answer relative fusion logs. vs need restart after changes in registry.

if doesn't resolve issue, suggest use process monitor find culprit activity. had lot of autorecover related logs not real issue in projects.