enfin perso, l'espace libre sur mon disque, je m en soucis relativement peut, j sais que j'ai plus de 200Go de libre,.... et que je risque pas demain d'être a court de place
 
donc savoir qu un jour j'ai 205, une semaine après 195,.... useless

Windows Explorer
 
    * Control Panel views are limited to Small icons and Large icons (which is actually Tiles view). List view, Details view, Extra large icons view, Large icons view and Medium icons view with text at the bottom are not available.
    * The slide show button from Windows Explorer starts the Windows Photo Viewer, which unlike Windows Live Photo Gallery, does not support viewing slide shows with themes and rich transitions.
    * It is not possible to run the 32-bit version of Windows Explorer as a file manager or as the shell in 64-bit editions of Windows 7.[1] 64-bit editions of Windows Vista and Windows XP allowed executing the 32-bit shell/Windows Explorer and making it the default for compatibility with shell extensions. As a result, all 32-bit shell extensions are incompatible with 64-bit versions of Windows 7.
    * An undocumented incompatible Items view control replaces the List view control[2] used in Windows Explorer and Start Menu breaking applications that customized the Explorer list view control.[3] The Item view also does not support custom positioning, custom ordering, or hyperlinks, which were supported in the Windows Vista list view.[4] Because the control is undocumented, it is not possible for developers to disable auto arrange or customize views.
    * The new items view control also ignores certain desktop.ini parameters like IconArea_Image and IconArea_Text preventing users from setting a background picture for folders. In Windows Vista, this feature was not built-in, however the list view control supported this if shell extensions or folder customization utilities which set the correct desktop.ini parameters and attributes were installed.
    * Each toolbar or desk band is forced to be on its own row in Windows Explorer. The Explorer forces the RBBS_BREAK style for every band.[5]
    * When items are grouped by any criteria, multiple selection of groups by clicking the group header while holding down Ctrl is not possible as could be done in Windows Vista.[6]
    * The entire folder tree view in the navigation pane cannot be collapsed as could be done in Windows Explorer on Windows Vista.
    * Full row selection cannot be turned off for details view as was possible in Windows Vista.[7]
    * The Share overlay icon for shared items in Explorer has been removed.[8]
    * When navigating to a folder from a library, it is not possible to view the folder's contents in the view the user has set or customized. The folder uses the library's view.
    * It is not possible to set Windows Explorer to remember individual folder window sizes and positions. Each folder window shares the same size, and their position cascades as more windows are opened.
    * Dotted lines that connect folders and subfolders do not appear as the option to turn off simple folder view is missing.[9][10]
    * The size of any selected item(s) is not shown on the status bar but is shown in the details pane just above the status bar. Free disk space is not shown on the status bar and the status bar is not visible by default. The details pane only shows the size of 15 selected items by default and viewing the total size of more than 15 selected items requires clicking "Show more details" each time the selection changes.
    * When no items are selected in a folder, neither the details pane nor the status bar show the total size of files in the folder.
    * Icons on the command bar in Windows Explorer and common application dialogs for Open/Save.
    * Disabling Auto Arrange and Align to Grid is not available in Windows Explorer windows.[11][12] As a result, users can no longer manually arrange items via drag and drop within a folder; this feature is only available on the desktop.
    * The Sort by / Stack by bar with column headers that appears for any view to sort or filter items in Windows Vista only appears for Details view.[13]
    * Automatic horizontal scrolling in the left pane and the horizontal scrollbar.
    * The Arrange By/Stack By option is only available for libraries and folders included in libraries. In addition, users can only Stack By predefined categories depending on the library type. For example, users can only Stack By Folder, Album, Artist, Song, Genre, and Rating for the Music library, whereas in Vista, users could Stack By any properties that exist for a file (common examples would be bit rate, year, composer, play count, etc. for audio files).
    * Changing the sort criteria when multiple items are selected causes all items to be de-selected.
 
Start menu
 
    * Classic Start menu.[17] Certain features that were present only in the Classic Start menu are not available, such as expanding the menu columns instead of scrolling, expanding folders by hovering instead of clicking, opening folders by double clicking, and launching multiple programs by holding down Shift key while clicking.
    * Dynamically pinning default Internet browser and e-mail client software programs on Start menu (programs can be manually pinned to the Start menu in Windows 7).

Windows Explorer
 
    * Control Panel views are limited to Small icons and Large icons (which is actually Tiles view). List view, Details view, Extra large icons view, Large icons view and Medium icons view with text at the bottom are not available.
    * The slide show button from Windows Explorer starts the Windows Photo Viewer, which unlike Windows Live Photo Gallery, does not support viewing slide shows with themes and rich transitions.
    * It is not possible to run the 32-bit version of Windows Explorer as a file manager or as the shell in 64-bit editions of Windows 7.[1] 64-bit editions of Windows Vista and Windows XP allowed executing the 32-bit shell/Windows Explorer and making it the default for compatibility with shell extensions. As a result, all 32-bit shell extensions are incompatible with 64-bit versions of Windows 7.
    * An undocumented incompatible Items view control replaces the List view control[2] used in Windows Explorer and Start Menu breaking applications that customized the Explorer list view control.[3] The Item view also does not support custom positioning, custom ordering, or hyperlinks, which were supported in the Windows Vista list view.[4] Because the control is undocumented, it is not possible for developers to disable auto arrange or customize views.
    * The new items view control also ignores certain desktop.ini parameters like IconArea_Image and IconArea_Text preventing users from setting a background picture for folders. In Windows Vista, this feature was not built-in, however the list view control supported this if shell extensions or folder customization utilities which set the correct desktop.ini parameters and attributes were installed.
    * Each toolbar or desk band is forced to be on its own row in Windows Explorer. The Explorer forces the RBBS_BREAK style for every band.[5]
    * When items are grouped by any criteria, multiple selection of groups by clicking the group header while holding down Ctrl is not possible as could be done in Windows Vista.[6]
    * The entire folder tree view in the navigation pane cannot be collapsed as could be done in Windows Explorer on Windows Vista.
    * Full row selection cannot be turned off for details view as was possible in Windows Vista.[7]
    * The Share overlay icon for shared items in Explorer has been removed.[8]
    * When navigating to a folder from a library, it is not possible to view the folder's contents in the view the user has set or customized. The folder uses the library's view.
    * It is not possible to set Windows Explorer to remember individual folder window sizes and positions. Each folder window shares the same size, and their position cascades as more windows are opened.
    * Dotted lines that connect folders and subfolders do not appear as the option to turn off simple folder view is missing.[9][10]
    * The size of any selected item(s) is not shown on the status bar but is shown in the details pane just above the status bar. Free disk space is not shown on the status bar and the status bar is not visible by default. The details pane only shows the size of 15 selected items by default and viewing the total size of more than 15 selected items requires clicking "Show more details" each time the selection changes.
    * When no items are selected in a folder, neither the details pane nor the status bar show the total size of files in the folder.
    * Icons on the command bar in Windows Explorer and common application dialogs for Open/Save.
    * Disabling Auto Arrange and Align to Grid is not available in Windows Explorer windows.[11][12] As a result, users can no longer manually arrange items via drag and drop within a folder; this feature is only available on the desktop.
    * The Sort by / Stack by bar with column headers that appears for any view to sort or filter items in Windows Vista only appears for Details view.[13]
    * Automatic horizontal scrolling in the left pane and the horizontal scrollbar.
    * The Arrange By/Stack By option is only available for libraries and folders included in libraries. In addition, users can only Stack By predefined categories depending on the library type. For example, users can only Stack By Folder, Album, Artist, Song, Genre, and Rating for the Music library, whereas in Vista, users could Stack By any properties that exist for a file (common examples would be bit rate, year, composer, play count, etc. for audio files).
    * Changing the sort criteria when multiple items are selected causes all items to be de-selected.
 
Start menu
 
    * Classic Start menu.[17] Certain features that were present only in the Classic Start menu are not available, such as expanding the menu columns instead of scrolling, expanding folders by hovering instead of clicking, opening folders by double clicking, and launching multiple programs by holding down Shift key while clicking.
    * Dynamically pinning default Internet browser and e-mail client software programs on Start menu (programs can be manually pinned to the Start menu in Windows 7).Pour la liste complète : features removed in Windows 7
 

The details pane only shows the size of 15 selected items by default and viewing the total size of more than 15 selected items requires clicking "Show more details" each time the selection changes.

The details pane only shows the size of 15 selected items by default and viewing the total size of more than 15 selected items requires clicking "Show more details" each time the selection changes.Super pratique, quand on prépare une sélection de fichiers pour une clé USB. A chaque fichier que l'on sélectionne ou déselectionne dans l'explorateur, il faut recliquer sur "Afficher les détails" pour avoir la taille. Sauf s'il y a moins de 15 fichiers (pourquoi 15 ? Mystère...). Et donc pas de poids du dossier quand aucun fichier n'est sélectionné, ni d'espace libre du disque. Alors, oui, évidemment que l'on peut avoir tous ces renseignements d'une autre manière, en allant cliquer à droite à gauche. Mais depuis 15 ans, on les avait sous les yeux, en permanence, sans avoir à quitter sa fenêtre et aller cliquer ailleurs.
 

enfin perso je serais pas trop t'aider