Q: Can I get a refund for Mac OS X v10.7 Lion? As I am not satisfied.

Perhaps, but you'll have to talk to the App Store.

http://www.apple.com/support/mac/app-store/

Matt

As is the case with virtually any software that you purchase, if you open and use it (if it was a on a DVD or a CD), there are no refunds. Once you open the package - physical or virtual - and install the software, it cannot be returned.

But you can always try. Good luck.

http://www.apple.com/support/contact/

… Can I get a refund?

Probably not.

Lion likes memory. Buy more if you can:

MacBook: How to remove or install memory

Lion will run in 2 GB but 4 GB is a more realistic minimum.

Updating is supposed to make it work better,

If your system was not in absolutely perfect condition or you have some apps which have not been updated to be compatible with the new OS or don't have enough memory, an upgrade may not produce the desired results.

So you might want to start with checking how much RAM you have and if any apps are hogging either the RAM or CPU in Activity Monitor (Applications > Utilities > Activity Monitor).

First, back up all data immediately, as your boot drive may be failing.

If you have more than ten or so files or folders on your Desktop, move them, temporarily at least, somewhere else in your home folder.

If iCloud is enabled, disable it.

Disconnect all wired peripherals except keyboard, mouse, and monitor, if applicable. Launch the usual set of applications you use when you notice the problem.

Step 1

Launch the Activity Monitor application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Activity Monitor in the page that opens.

Select the CPU tab.

Select All Processes from the menu in the toolbar, if not already selected.

Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.

Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?

Step 2

You must be logged in as an administrator to carry out this step.

Launch the Console application in the same way as above. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left.

Post the 50 or so most recent messages in the log — the text, please, not a screenshot.

Important: Some personal information, such as your name, may appear in the log. Edit it out before posting.

We are not Apple so we can't help with refunds.

We can help you improve whatever problem you are having with Lion.