One of the most irritating & annoying problem which Windows Vista users face is that they find Windows Explorer forgetting time and again the folder view settings which he or she set for a particular folder only to find it reverted back to the default settings. I have a 22” LCD monitor and so with its high resolution, I usually set my windows to large sizes but not fully maximized to have aero effects around the Windows. Also my icons are usually set between large to extra large specially in “Games Explorer”, “Pictures”, “Videos” and “Music”. I, like many users face the same problem when after moving or making changes to a file in a folder sometimes makes the folder to revert back to its default setting with smaller window size and small icons. This behavior is very annoying because you find yourself setting up the settings for a folder again and again. To me this problem mostly occurs with my “Games Explorer” window which goes back to its default settings as soon as I close it. This is not exactly a bug because by default Windows is set to remember settings for only 5000 folders. Fortunately there is a way to increase the folder view cache memory. Follow the following procedure:
Step 1: Click on Start Orb 
. Type regedit in start search and then click regedit to run registry editor.
Step 2: Navigate to HKEY_CURRENT_USER\Software\Classes\Local Settings\Software\Microsoft\Windows\Shell
Step 3: In the right pane, right click, point to New, then click on DWORD (32-bit) Value and name it BagMRU Size.
Step 4: Now in the right pane, right click on BagMRU Size, Click Modify.
Step 5: Check the Decimal and type 20000 and click OK.
Step 6: Restart your PC and you are done.
