Troubled by error: Your system has only xxxMB of free memory? Well, need not to worry, as here we are with the fix for this issue. The user might often come across the message stating that you don’t have enough system memory to install QuickBooks desktop. When the user tries to install QuickBooks desktop, he/she gets the system has only xxxMB of free memory. QuickBooks needs at least 1GB of free memory, after extracting the installer.