enabling the use of WINDOWS7 monitor calibration slows down the system
Using the Windows7 color correction feature produces an ICC profile within the system, and then when a user browses to a picture file, the Windows7 defaults to calling the resulting ICC profile instead of calling the component that comes with the video card. If the user has not used the Windows7 color correction feature, the ICC profile will not appear, and the above problem will not occur.
How to turn off the Windows7 display calibration tool
1, enter the Windows7 Control Panel, find and open "color management." In the Color Management dialog box that opens, switch to the Advanced tab, and then click Change System Defaults in the lower-left corner.
2, the system will again pop up a dialog box "color Management-system defaults." In this dialog box, also switch to the advanced option, and then cancel the system by default check "Use Windows Monitor calibration", after the modification, save the settings exit.
This allows you to turn off the Windows Monitor calibration feature and then use Windows Photo Viewer to not slow down the system.