Does Outlook work on Windows 7, 8 or Windows 10?

Manufacturers and retailers often offer the current version of Office with the purchase of a new computer, sometimes with a discount. Should you purchase the new version or save your money and keep the old (and less secure) version?

While Microsoft may say the older Office versions are "not compatible" or "not supported" on the current version of Windows, this doesn't necessarily mean "won't work". It just means that you might have issues and can't call Microsoft for help. You are on your own. This page lists some of the issues you might run into. If a feature you use is negatively affected, you probably should upgrade Office too.

Always make a backup of your Outlook .pst files before upgrading! If you use IMAP in outlook 2013 or Outlook 2016 and are storing the calendar and contacts in 'This Computer Only' folders, export those files to a pst before upgrading to Windows 10.

Windows 10: Officially, only Outlook 2007 and newer are supported on Windows 10. You need to have all service packs installed: Outlook 2007 SP3, Outlook 2010 SP2, or Outlook 2013 SP1. It's highly recommended that you install all updates, including post-SP cumulative updates, before upgrading Windows.

When you upgrade Windows, a new folder called Windows.old is created on your hard drive. If you are missing email, calendar, contacts, look in the Microsoft\Outlook path under windows.old for the missing pst files and move them to a folder within your new profile.

If you are upgrading from Windows 7 or 8, the pst files can be in either

C:\Windows.old\Users\<username>\Documents\Outlook files\
C:\Windows.old\Users\<username>\Local Settings\Application Data\Microsoft\Outlook\

If you are upgrading to Windows 10 from Windows XP, the pst is either in:

C:\Windows.old\Documents and Settings\<username>\Documents\Outlook files\
C:\Windows.old\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Outlook\

Do not enable compatibility mode – this is not needed and will cause problems with any version of Outlook.

Windows 8/8.1, Windows 7, Vista:
Naturally, Outlook 2007, 2010, and 2013, work well on Vista and Windows 7/8 and Windows 10. (Outlook 2007/2010 also work great on Windows XP; Outlook 2013 and newer is not supported on Windows XP.)

Outlook 2003 works well on Vista but there are a few problems with it on Windows 7 (see links below). Both of these versions are officially supported on Vista and Windows 7, so if any issues arise Microsoft will offer public hotfixes or include the fix in future Service Packs.

Outlook 2002, 2000, 98, and 97 are not supported on Vista or Windows 7 (or any later versions). If you choose to install any of these applications you should expect errors and annoyances. The better known problems are listed below but there may be others I'm not aware of. These versions of Outlook are all long out of support and Microsoft will not release patches to fix any problems with these versions. Upgrading is highly recommended, or use the new Vista calendar and mail applications if you are unwilling or unable to upgrade.

Outlook 2003:

For issues involving Outlook 2003 on Windows 7, Windows 8, or Windows 10, see the following pages:
Opening Zip Attachments
Office Assistant requires Microsoft Agent
Tip 734: Outlook 2003 buttons group with Word
Tip 1037: Outlook 2003 and Windows 8

Outlook 2000 information is now at Outlook 2000 on Vista & Windows 7

Outlook 2002:

It runs, but email account passwords are not saved. After you enter the password during the first email check, Outlook will remember it until you close down Outlook. This is because Outlook used the protected storage interfaces to store passwords and these are no longer supported in Vista.

One possible solution is to run Outlook as an administrator. Right click on Outlook shortcut or Outlook.exe and choose Run as Administrator. If you don't see the Run as Administrator command, Shift + right-click to enable the Run as Administrator command.

You can use a Windows script program such as AutoIt to enter the password for you.

Note that when you enter the password, the Send and Receive that brought up the password dialog may fail but future send and receives will work. Leave Outlook open 24/7 to avoid entering it frequently.

Recurring calendar items may not open. This may be related to opening a single event in a series from the Day/Week/Month view. Open the event using any List view, such as Recurring Appointments (View, Current View, Recurring Appointments). It may also work to open the entire series from the Day/Week/Month view, I haven't tested it yet.

Outlook 2000:

Now that the list of workarounds is growing, thanks to our readers, I moved Outlook 2000 to its own page at Outlook 2000 on Vista & Win7.

Outlook 98:

Like Outlook 2000, IMO mode will not work because of the missing wab.dll. I haven't tested it with Corporate mode yet, but I recommend using Vista's Mail and Calendar programs instead – Outlook 98 is just too insecure.

If you are unfamiliar with the difference between IMO and Corporate modes, see Choosing an Outlook 98 or Outlook 2000 Mode.

Outlook 97:

Not tested. Because of the lack of features, buggyness and slowness, it's highly recommended that anyone still using Office 97 either upgrade or use the built-in Mail and Calendar apps instead.

Last reviewed on August 2, 2015.

  • Irfan

    My outlook 2007 does not work on window 7 can you help please.

  • Diane Poremsky

    What exactly happens when you try to use it?

  • william keegan

    In Outlook Calendar I tried to open an entry I get an error message "Can't open this item. The object is not valid" Why am I getting this message and what does it mean?

  • Ric Bowell

    Outlook 7 - I have setup my em address.When I try to open Outlook 7 I get the following message. "Outlook won't start "the information store could not be opened" I have follow many suggestions but none have worked.

  • Diane Poremsky

    Are you using Compatibility mode? That is not necessary and can cause this error message.

    Did you try resetting the navigation pane?

  • Kaushik Modi

    I am upgrading my computer. Old computer has Microsoft XP and Microsoft Outlook 2002 SP3. New computer will have Windows 7 & Microsoft Office 2010 professional. I need to move all outlook data files to new computer. How should I do it.
    Thanks, Kaushik.

  • naveen

    how to configure outlook in window7

  • no-geek-at-all

    Will I be able to run Outlook Express (that was on my XP) on Windows 7 under compatibility mode?

    Thanks in advance!

  • Aaron M.

    ave to say I was skeptical and it rook me 6 or 7 attempts , but it worked in the end.
    -had to do it from safe mode.
    - had to right click and "run as an administrator" all the time.
    but it did work ,......
    Outlook 2002 on Windows 7 SP-1 !

  • Diane Poremsky

    Note that Protected Storage fix at that link is not from Microsoft - use at your own risk. (It also puts Windows 7 into an "unsupported mode" but most people don't go to Microsoft for support anyway.)

  • George

    Can i play learnkey office 2000 on windows vista ? I am getting these error messages -
    Access Violation at address 004AEDB6 in module 'velocity.exe'. Read of address 00000008


    Exception EOleSysError in module velocity. exe at 000453c1.
    Class not registered.

  • Diane Poremsky

    Generally speaking, most apps should run on it. I'm not familiar with how this program works, but I'd try setting the properties on the program to run in compatibility mode. Or see - they say to insure you have the latest media player and flash and also to install it in C:\Learnkey also see

  • Victor Delta

    I can provide an update on Outlook 2002 and Windows 8 (64 bit). It does work although the password problem is annoying. However, this can be overcome by using OLAutoPW (see link above) which works very impressively.

    One point to mention is that I couldn't get the Windows 7 version of OLAutoPW to work on Windows 8 (even using the compatibility mode settings) but v201 for Vista does work well (NB using compatibility settings for Vista).

  • Victor

    Spoke too soon! OLAutoPW works fine for the trial period but I am advised by the German software creator that unfortunately the registration process will need changing to work with Windows 8 and that will not be done owing to the low number of users requiring it. Understandable I guess. So perhaps I shall have to see if i can find a copy of Outlook 2003 (to avoid upgrading to ribbon toolbars etc!).

  • Diane Poremsky

    Too bad they can't provide you with a registration-free product. :( Check eBay or sites that sell close-out and older software.

  • Floyd Hamilton

    I have Office, but messages pop up that I have to have Office in order to get Outlook. Isn't this a "Catch 22"? What do I have to do to correct this? I have Windows 8.

  • Diane Poremsky

    what version of outlook do you own? what are you doing when you get the error?

  • danny antony

    Hello Diane

    I have got to this page because I am having a real problem running Microsoft outlook 2002
    with email account ( passwords ) on my windows 7 machine - as your post points out the passwords for the 2 accounts I have must be continuously manually added, which is becoming very annoying. everything else works fine.

    I downloaded AutoIt and installed it ( I know my way around PC;s and software etc ) but I have never written scripts. ... I have followed instructions and successfully created batch files but that is about it.

    I downloaded the 64bit version of Autoit and installed the run script version ..

    I am sure this will be very simple for you but can you please tell me what bit of Autoit I should launch ( I have a few progs in my programme folder ) and how do I actually go about making this programme input my password when I launch Microsoft outlook 2000 ?

    I hope you are still monitoring this page or if somebody else can help me I would really appreciate it.

    Kind regards


  • Diane Poremsky

    I have not used autoit for this purpose, but will try to to figure out what you need to do. I'm sure there are other people with the same problem, but don't want to ask for help.

  • danny antony

    Hi Diane

    I managed to get a work around for this problem - I found a post that wrote a specific instruction that seemed to work for some but not for others - I was lucky and it worked for me.

    I do not want to put you to any trouble so please do not worry about finding a fix for me specifically

    I am very impressed that you replied - you are doing a great public service.

    Kind regards

  • Samantha Grower

    I am having issues with Outlook 2003 SP3 on my Windows 7 Pro SP1 desktop computer. It worked fine until about a week and a half ago. Then it began doing two strange things.

    First - I have it to set to automatically spellcheck when sending. It would find an error and offer suggestions. I would choose the correct spelling and click the Change button. The message is then sent, but without the correction I indicated.

    Second - Outlook started cutting off my emails when I send them. When I type a new message and send, everything is fine. However, if I go back to make a revision, that's where the message is cut off when I send it. The recipients receive an incomplete message.

    I have been told this is likely the result of a bad Windows or Microsoft update, but I have not been able to fix it by doing a System Restore or uninstalling any updates. I tried uninstalling Office 2003, and doing a fresh install, but that did not work either. Now, I am facing a complete system rebuild. Is anyone else having these issues? Can anyone offer a suggestions to fix this?

  • Diane Poremsky

    Does it work correctly in Safe mode?

    Did you post this on other sites? If not, there is more than just you with this problem.

  • Samantha Grower

    Hi, Diane,

    I am not sure about Safe Mode; I will try it and let you know. I have been working on a separate hard drive with an older working image of my computer to see if I can isolate a Windows or Microsoft update that causes Outlook to manifest these issues. no luck so far, but I will advise if I learn anything on that front.

    I have not posted this on other sites, and I know there are 6 of us in my company alone having these issues. I looked on other sites for ideas / suggestions / solutions, but did not find anything that solved this problem.


  • Diane Poremsky

    Oh, since you haven't posted anywhere else, there are others with the same problem. That means its probably not something you did. It could be an addin or another application causing problems.

  • Samantha Grower

    That's what I think too, especially these issues did not start for all affected users at the same time; they appeared over the last two weeks or so. That's also why I am suspicious of the Windows / Microsoft updates; they are released on Tuesdays.

    Any suggestions as to which add-ins or software might be causing this?

  • Samantha Grower

    Hi, Diane,

    I have now tried my email in Safe Mode and confirmed that the issues persist.


  • Samantha Grower

    After spending many hours installing Windows / Microsoft Updates one at a time and then testing my email, I have determined that Internet Explorer 11 is to blame. After uninstalling it, restarting, and then hiding it to prevent Automatic Updates from reinstalling it, everything is working properly again.

  • Diane Poremsky

    Thanks for the update!

  • beth

    Can you export from XP's outlook express, and import that mail and address book into Window's 10's email program?

    My dad is asking but I can't find a specific answer to this anywhere yet...