• At least 2.0GHz Pentium 4 processor for a client (2.4GHz recommended)
• At least 1 GB (2GB recommended) RAM for a client
• At least 4GB for server
• 2.5 GB of available disk space (additional space required for data files)

• 250MB for Microsoft .NET 4.0 Runtime, provided on the QuickBooks CD

Operating systems supported (U.K. versions with Regional Language set to U.K. English recommended):

• Windows 7 (all editions except Starter and Basic)
• Windows 8, (Release 4 and greater)
• Windows XP (SP3 or later strongly recommended), all editions
• Windows Vista (w/UAC on), all editions
• Windows Server 2003
• Windows Server 2008
• 64-bit version of above operating systems also supported
• 4x CD-ROM drive
• Optimized for 1024×768 screen resolution or higher. 1024×768 or higher is required

QuickBooks is capable of integrating with hundreds of third-party applications. The following integrations are provided with QuickBooks; additional RAM will enhance the use of these features.
See Intuit Marketplace for the most up-to-date list.

Microsoft Office:

• Office 2010 (including Outlook 2010) both on 32 and 64 bit.
• Preparing letters requires Microsoft Word 2010, 2007, or 2003.
• Exporting reports requires Microsoft Excel 2010, 2007, or 2003.
•  Contact Synchronization with Microsoft Outlook requires Outlook 2010, 2007, or 2003.
• Synchronization with Outlook requires QuickBooks Contact Sync for Outlook (the download is available at no charge).

Contact Sync does not work with the Microsoft Business Contact Manager Outlook plug-in. If a sync is performed, duplicate records could result

Microsoft Windows 7 (all editions except Starter and Basic), Windows XP (SP2 or later strongly recommended), Windows Vista (with UAC on), Windows Server 2003, Windows Server 2008, or Small Business Server 2008.

• Disk space requirements do not include company data files, so if you manage many companies or if your company data file is very large you may need more disk space.
• Network access speed has a strong impact on performance in networked environments (multi-user, or when accessing data files on other computers). We recommend a minimum 100Mbps network for optimal performance. VPN and wireless networks often cannot provide sufficient, reliable, low-latency performance.
• Disk access speed can affect performance. We recommend a 7200 rpm drive (or 20+ MB/sec); faster is better, and SATA is typically faster than IDE. Disks with large caches may improve performance, depending on usage. Minimum access speed is 4200 rpm.
• QuickBooks will run on both 32-bit and 64-bit processors running XP (SP3), Vista (incl 64 bit) and Windows 7(incl 64 bit), but is compiled as a 32-bit application. Some capabilities (such as memory access) may be greater on 64-bit machines.
• IE and .NET 4.0 cannot be turned off in Windows 7.

• Microsoft® Windows XP Firewall (all editions)
• Microsoft® Windows Vista Firewall (all editions)
• Microsoft® Windows 7 Firewall (all editions)
• Symantec Norton® Antivirus, Internet Security, Norton 360
• Zone Labs’ ZoneAlarm
• Microsoft OneCare
• McAfee Anti-Virus Plus, Internet Security Suite, Total Protection
• Trend PC-Cillin, Internet Security