• If you are running out of RAM your Mac's drive can be used as virtual memory - so free up some storage space if you are running out of RAM. The recommendation is to keep 20% of your drive space free.
• After you have selected the disk, click on the erase button or open the Erase tab and click Erase. Note that this will erase all your data from the drive. As a result, that part of your hard disk is now empty, and now you understand that How to Factory Reset MacBook Pro.

As you can see, no high-priced utilities are needed to return to your MacBook’s fast speed. You can clean MacBook Pro’s hard drive manually. But the best way to clean up MacBook Pro is to use a free application App Cleaner & Uninstaller. Download it for free and enjoy the best Mac cleaner in town.

Optimised Storage helps you save storage space by storing your content in iCloud and making it available on demand:

• When storage space is needed, files, photos, films, email attachments and other files that you rarely use are stored in iCloud automatically.
• Each file stays exactly where you last saved it, and will download when you open it.
• Files that you’ve used recently remain on your Mac, along with optimised versions of your photos.

If you haven't yet upgraded to macOS Sierra or later, find out about other ways to free up storage space.

Find out how much storage is available on your Mac

Choose Apple menu  > About This Mac and then click Storage. Each segment of the bar is an estimate of the storage space used by a category of files. Move your pointer over each segment for more detail.

Click the Manage button to open the Storage Management window, pictured below.

Manage storage on your Mac

The Storage Management window offers recommendations for optimising your storage. If some recommendations have already been turned on, you will see fewer recommendations.

Store in iCloud

Click the Store in iCloud button and then choose from these options:

• Desktop and Documents. Store all files from these two locations in iCloud Drive. When storage space is needed, only the files you recently opened are kept on your Mac, so that you can work offline easily. Files only stored in iCloud will display a download icon , which you can double-click to download the original file. Find out more about this feature.
  
• Photos. Store all original, full-resolution photos and videos in iCloud Photos. When storage space is needed, only space-saving (optimised) versions of photos are kept on your Mac. To download the original photo or video, just open it.
  
• Messages. Store all messages and attachments in iCloud. When storage space is needed, only the messages and attachments you recently opened are kept on your Mac. Find out more about Messages in iCloud.

Storing files in iCloud uses the storage space in your iCloud storage plan. If you reach or exceed your iCloud storage limit, you can either buy more iCloud storage or make more iCloud storage available. iCloud storage starts at 50 GB for $0.99 (USD) a month, and you can purchase additional storage directly from your Apple device. Find out more about the prices in your region.

Optimise Storage

Click the Optimise button to save space by automatically removing films and TV programmes you've watched. When storage space is needed, films or TV programmes that you've purchased from Apple and have already watched will be removed from your Mac. Click the download icon next to a film or TV programme to download it again.

Your Mac will also save space by only keeping recent email attachments on this Mac when storage space is needed. You can manually download any attachments at any time by opening the email or attachment, or saving the attachment to your Mac.

Optimising storage for films, TV programmes and email attachments doesn't require iCloud storage space.

Empty Bin Automatically

Empty Bin Automatically permanently deletes files that have been in the Bin for more than 30 days.

Reduce Clutter

Reduce Clutter helps you identify large files and files you may no longer need. Click the Review Files button and then choose any of the file categories in the sidebar, such as Applications, Documents, Music Creation or Bin.

You can delete the files in some categories directly from this window. Other categories show the total storage space used by the files in each app. You can then open the app and decide whether to delete files from within it.

Find out how to re-download apps, music, films, TV programmes and books.

Where to find the settings for each feature

The button for each recommendation in the Storage Management window affects one or more settings in other apps. You can also control these settings directly within each app.

• If you're using macOS Catalina or later, choose Apple menu  > System Preferences, click Apple ID, and then select iCloud in the sidebar: Store in iCloud turns on the Optimise Mac Storage setting on the right. To turn off iCloud Drive entirely, deselect iCloud Drive.
• If you're using macOS Mojave or earlier, choose Apple menu > System Preferences, click iCloud, then click Options next to iCloud Drive. Store in iCloud turns on the Desktop & Documents Folders and Optimise Mac Storage settings.
• In Photos, choose Photos > Preferences and then click iCloud. Store in iCloud selects iCloud Photos and Optimise Mac Storage.
• In Messages, choose Messages > Preferences, then click iMessage. Store in iCloud selects Enable Messages in iCloud.

• If you're using macOS Catalina or later, open the Apple TV app, choose TV > Preferences from the menu bar, then click Files. Optimise Storage selects “Automatically delete watched films and TV programmes”.
• In you're using macOS Mojave or earlier, open iTunes, choose iTunes > Preferences from the menu bar, then click Advanced. Optimise Storage selects “Automatically delete watched films and TV programmes”.
• In Mail, choose Mail > Preferences from the menu bar and then click Accounts. In the Account Information section on the right, Optimise Storage sets the Download Attachments menu to either Recent or None.

Empty Bin Automatically: From the Finder, choose Finder > Preferences, then click Advanced. Empty Bin Automatically selects “Remove items from the Bin after 30 days”.

Other ways that macOS automatically helps to save space

With macOS Sierra or later, your Mac will take these additional steps automatically to save storage space:

• Detects duplicate downloads in Safari, keeping only the most recent version of the download
• Reminds you to delete used app installers
• Removes old fonts, languages and dictionaries that aren't being used
• Clears caches, logs and other unnecessary data when storage space is needed

How to free up storage space manually

Even without using the Optimised Storage features described in this article, you can take other steps to make more storage space available:

• Music, films and other media can use a lot of storage space. Find out how to delete music, films and TV programmes from your device.
• Delete other files that you no longer need by moving them to the Bin, then emptying the Bin. The Downloads folder is good place to look for files that you may no longer need.
• Move files to an external storage device.
• Compress files.
• Delete unneeded email: In the Mail app, choose Mailbox > Erase Junk Mail. If you no longer need the email in your Deleted Items mailbox, choose Mailbox > Erase Deleted Items.

Learn more

• The Storage pane of About This Mac is the best way to determine the amount of storage space available on your Mac. Disk Utility and other apps may show storage categories, such as Not Mounted, VM, Recovery, Other Volumes, Free or Purgeable. Don't rely on these categories to understand how to free up storage space or how much storage space is available for your data.
• When you duplicate a file on an APFS-formatted volume, that file doesn't use additional storage space on the volume. Deleting a duplicate file only frees up the space required by any data that you might have added to the duplicate. If you no longer need any copies of the file, you can recover all of the storage space by deleting both the duplicate and the original file.
• If you're using a pro app and Optimise Mac Storage, find out how to make sure your projects are always on your Mac and able to access their files.

To identify your MacBook Pro model, use the information in How to identify MacBook Pro models.

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Mac os x lion for virtualbox. Once you're sure which model you have, find it in the list below to go to the instructions for that model. Note: Apple notebooks not listed in this table have non-removable memory.

Applicable Models

The instructions provided below are for the following MacBook Pro (13-inch) models:

• MacBook Pro (13-inch, Mid 2012)
• MacBook Pro (13-inch, Late 2011)
• MacBook Pro (13-inch, Early 2011)
• MacBook Pro (13-inch, Mid 2010)
• MacBook Pro (13-inch, Mid 2009)

Memory specifications

Use the tables below to confirm the memory you're installing is compatible with your MacBook Pro.

Removing or installing memory

Warning: The internal components of your MacBook Pro can be warm. If you have been using your MacBook Pro, wait ten minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the bottom case

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, USB cables, security lock, and any other cables connected to the MacBook Pro to prevent damaging the computer.
2. Turn over your MacBook Pro and remove the ten (10) screws that secure the bottom case. Because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place. Lift off the case and place it to the side.
   
3. Touch a metal surface inside the computer to discharge any static electricity from your body.
   

Step 2: Remove existing memory (if present)

1. Push the levers on the sides of the memory module in an outward direction to release the module from the memory card slot. The memory pops up at an angle. Before removing it, make sure you find the half-circle notches. If you don’t, try pressing the levers outward again.
2. Hold the memory module by its notches and remove it from the slot.
3. Remove the other memory module.
   Important: Hold the memory modules by their edges, and do not touch the gold connectors.
   

Step 3: Install memory

1. Align the notch on the gold edge of the module with the notch in the lower memory slot.
2. Tilt the card and push the memory into the slot.
3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when you insert the memory correctly.
4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it is level.
   Note: Make sure you install the memory according to this illustration, with the gold contacts inserted almost completely into the connector.

Step 4: Replace the bottom case

Replace the bottom case. Replace and tighten the ten screws you removed earlier, making sure to put the different length screws in their proper locations.

Applicable Models

The instructions provided below are for the following MacBook Pro 15-inch models:

• MacBook Pro (15-inch, Mid 2012)
• MacBook Pro (15-inch, Late 2011)
• MacBook Pro (15-inch, Early 2011)
• MacBook Pro (15-inch, Mid 2010)
• MacBook Pro (15-inch, 2.53GHz Mid 2009)
• MacBook Pro (15-inch, Mid 2009)

Memory specifications

Please use the tables below to confirm the memory being installed is compatible with your MacBook Pro.

Removing or installing memory

Warning: The internal components of your MacBook Pro can be warm. If you have been using your MacBook Pro, wait ten minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the bottom case

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, USB cables, security lock, and any other cables connected to the MacBook Pro to prevent damaging the computer.
2. Turn over your MacBook Pro and remove the ten (10) screws that secure the bottom case. Because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place. Lift off the case and place it to the side.
   
3. Touch a metal surface inside the computer to discharge any static electricity from your body.
   

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Step 2: Remove existing memory (if present)

1. Push the levers on the sides of the memory module in an outward direction to release the module from the memory card slot. The memory pops up at an angle. Before removing it, make sure you find the half-circle notches. If you don’t, try pressing the levers outward again.
2. Hold the memory module by its notches and remove it from the slot.
3. Remove the other memory module.
   Important: Hold the memory modules by their edges, and do not touch the gold connectors.

Step 3: Install memory

1. Align the notch on the gold edge of the module with the notch in the lower memory slot.
2. Tilt the card and push the memory into the slot.
3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when you insert the memory correctly.
4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it is level.Note: Make sure you install the memory according to this illustration, with the gold contacts inserted almost completely into the connector.

Step 4: Replace the bottom case

Replace and tighten the ten screws you removed earlier, making sure to put the different length screws in their proper locations.

Applicable model

The instructions provided below are for the following MacBook Pro 15-inch models:

• MacBook Pro (15-inch, Late 2008)

Memory specifications

Please use the table below to confirm the memory being installed is compatible with your MacBook Pro. Free adobe photoshop for mac download full version.

Removing or installing memory

Warning: The internal components of your MacBook Pro can be warm. If you have been using your MacBook Pro, wait ten minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the access door

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, security lock, and any other cords connected to the MacBook Pro to prevent damaging the computer.
2. Turn over your MacBook Pro and locate the latch. Push down to release the latch and remove the access door that covers the battery and hard drive.
3. The latch must be in its released, open position to remove the access door.

Step 2: Remove the battery

With the latch still in its open position, gently pull up on the tab to remove the battery.

Step 3: Remove the bottom case

1. Remove the eight screws that secure the bottom case of your MacBook Pro, and then remove the bottom case.
   Important: Because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place.
   
2. Touch a metal surface inside the computer to discharge any static electricity from your body.

Step 4: Remove existing memory (if present)

1. Push out the ejection levers on the sides of the memory module to release the module from the memory card slot. The memory pops up at an angle. Before removing it, make sure you find the half-circle notches. If you don’t, try pressing the ejection levers again.
2. Hold the memory module by the notches and remove it from the slot.
3. Remove the other memory module.
   Important: Hold the memory modules by their edges; do not touch the gold connectors.
   

Step 5: Install memory

1. Align the notch on the gold edge of the module with the notch in the lower memory slot.
2. Tilt the card and push the memory into the slot.
3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when you insert the memory correctly.
4. Repeat, if necessary, to install an additional memory module in the top slot. Press down on the module to make sure it is level.
   Note: Make sure you install the memory according to the illustration below, with the gold contacts inserted almost completely into the connector.
   

Step 6: Replace the bottom case

Replace the bottom case. Replace and tighten the eight screws.

Step 7: Replace the battery

To replace the battery, make sure the latch is in its open position. Hold the battery at an angle and slide the lipped edge of the battery below the brackets on the outside edge of the battery bay. Gently press the battery down.

Step 8: Replace the access door

With the latch in the open position replace the access door, making sure it is level with the bottom case of your MacBook Pro, and press the latch into the closed position.

Applicable models

The instructions provided below are for the following MacBook Pro 17-inch models:

• MacBook Pro (17-inch, Late 2011)
• MacBook Pro (17-inch, Early 2011)
• MacBook Pro (17-inch, Mid 2010)
• MacBook Pro (17-inch, Mid 2009)
• MacBook Pro (17-inch, Early 2009)

Memory specifications

Use the tables below to confirm the memory being installed is compatible with your MacBook Pro.

Removing or installing memory

Warning: The internal components of your MacBook Pro can be warm. If you have been using your MacBook Pro, wait ten minutes after shutting down the computer to let the internal components cool before continuing.

Step 1: Remove the bottom case

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, USB cables, security lock, and any other cables connected to the MacBook Pro to prevent damaging the computer.
2. Turn over your MacBook Pro and remove the ten (10) screws that secure the bottom case. Because the screws are different lengths, note the screw lengths and locations so you can replace the screws correctly. Put them aside in a safe place. Lift off the case and place it to the side.
   
3. Touch a metal surface inside the computer to discharge any static electricity from your body.
   

Step 2: Remove existing memory (if present)

1. Push the levers on the sides of the memory module in an outward direction to release the module from the memory card slot. The memory pops up at an angle. Before removing it, make sure you find the half-circle notches. If you can't find the notches, try pressing the levers outward again.
2. Hold the memory module by its notches and remove it from the slot.
3. Remove the other memory module.
   Important: Hold the memory modules by their edges; do not touch the gold connectors.
   

Step 3: Install memory

1. Align the notch on the gold edge of the module with the notch in the lower memory slot.
2. Tilt the card and push the memory into the slot.
3. Use two fingers with firm, even pressure to push down on the memory module. There should be a click when you insert the memory correctly.
4. Repeat this procedure to install an additional memory module in the top slot. Press down on the module to make sure it is level.
   Note: Make sure your memory is installed according to the illustration below, with the gold contacts inserted almost completely into the connector.

Step 4: Replace the bottom case

Replace the bottom case. Replace and tighten the ten screws you removed earlier, making sure to put the different length screws in their proper locations.

Applicable models

The instructions provided below are for the following MacBook Pro 15-inch and 17-inch models:

• MacBook Pro (17-inch, Late 2008) and earlier
• MacBook Pro (15-inch, Early 2008) and earlier

Memory specifications

Please use the tables below to confirm the memory being installed is compatible with your MacBook Pro.

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Refer to this table for the maximum amount of memory that can be recognized by these notebook computers:

Removing or installing memory

You will need to remove the battery before installing additional memory and reinstall the battery after installing the memory. The following procedure includes all the necessary instructions for both parts of the process.

Warning: The internal components of your MacBook Pro can be warm. If you have been using your MacBook Pro, wait ten minutes after shutting down the computer to let the internal components cool before continuing.

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Step 1: Remove the battery

1. Shut down your MacBook Pro. Disconnect the power adapter, Ethernet cable, and any other cords connected to the MacBook Pro to prevent damaging the computer.
2. Turn the computer over.
3. Locate the battery release latches on each side of the battery.
4. Slide both latches up. The battery should pop up slightly.
5. Lift the battery out.
   

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Step 2: Remove the memory door

1. Using a Phillips size 00 screwdriver, unscrew the memory door and remove it from the battery bay of your computer. Depending on the model of your MacBook Pro, you may have three or four screws.
   
2. Touch a metal surface inside the computer to discharge any static electricity from your body.
   

Step 3: Remove existing memory (if present)

If you need to remove a memory card—for example if you are replacing it or if you need to get past the memory in the top slot to access the bottom slot—you can remove the card by spreading the tabs on each side of the card away from the notches in the memory card. The card should pop up slightly. Lift the memory card to about a 25-degree angle and then gently slide the card out of the memory slot.
Important: Hold the memory modules by their edges; do not touch the gold connectors.

Step 4: Install memory

1. Insert the new memory card at a 25-degree angle. Line up the notch in the card with the small tab in the memory slot and slide the card into the slot until the gold edge is almost invisible. Firmly press the memory card into the memory slot. You might feel some resistance.
2. Gently spread the small tabs in the memory slot away from the notches and push the memory card down until the two tabs on either side of the card lock into place.
3. Insert any additional memory into the second slot.
   Note: Make sure you install the memory according to the illustration below, with the gold contacts inserted almost completely into the connector.
   

Step 5: Replace the memory door

Replace the memory door, and make sure the door is lying flat before you screw it back into place.

Step 6: To insert the battery

1. Place the bottom edge of the battery into the battery compartment at an angle, as shown below.
2. Gently press the top edge of the battery down until the battery latch locks into place.
   

Learn more

Checking that your computer recognizes the new memory

After installing additional memory, you should confirm that the computer recognizes the new memory. To check the computer’s memory:

1. Start up your computer.
2. When you see the Mac OS X desktop, choose the Apple () menu from the upper-left menu bar, then choose About This Mac.

The total memory includes the amount of memory that originally came with the computer plus the new memory you added, or if all the memory has been replaced, the new total for that memory. For detailed information about the amount of memory installed in your computer, open System Profiler by choosing Apple () and then About This Mac. Then, click More Info and then Memory from the Hardware section that appears in System Profiler.

If your computer doesn’t recognize the memory or doesn’t start up correctly, confirm that the memory you installed is compatible with your MacBook Pro and that it is installed correctly by reseating the memory.