Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
You can use any of the newer versions of the applications, ie Office 2010, to open the old files.
Have you tried to open the files using the File / Open dialog in the app? It should work correctly.
You say "try to open an old document". Exactly how are you trying to open the file. Are you double clicking on it in explorer? It sounds like the old file extensions, ie DOC, are still associated with the old app. I think that is why windoze is trying to install the old app.
So you want to check the file associations, and if they are wrong, ie still pointing to the old app, fix them:
File will not open on double click - File Association
Try repairing your Office installation, for example via Add or Remove Programs in Control Panel.
Repair or remove Office 2010 - http://office.microsoft.com/en-us/excel-help/repair-or-remove-office-2010-HA010357402.aspx?CTT=1
Re-register the application
There are several different ways you can reset the proper file associations. Word itself provides a way to do it. Open a command prompt window and, at the command line, enter the following:
winword /r
Nothing seems to happen when you press Enter, but Word will reregister itself back in Windows. In the process, it resets the file associations for the files it uses, such as DOC and DOT files. You can close the command prompt window and double-click on a document; Word should start right up.
Alternate Re-register the application
Close the app. Open the Run Window: <WIN> R, use the following command (Modify the Path to match your specific installation):
"C:\Program Files\Microsoft Office\Office\winword.exe" /unregserver
The quotes are necessary, but you may need to change the path so it reflects the location of the winword.exe file on your system. (You can use Windows’ Search tool to locate the path to the winword.exe file.) The /unregserver switch “unhooks” all the references to Word in the Windows Registry.
You should then, immediately, use the following command:
"C:\Program Files\Microsoft Office\Office\winword.exe" /regserver
This command causes Word to rewrite all its Registry keys and to reassociate itself with document and template files. Now you can double-click a document file and see if Windows starts Word and opens the document.
Need to associate the file type with program: In Windows XP:
- Locate the file as you have described above
- Right click the file
- Select Open with from the pop-up menu
- Click Choose default program…
- Select Excel in the Recommended Programs box
- Check Always use the selected program to open this kind of file
- Click on OK.
Alternate method of associating file type with program:
·Click Start
·type cmd in the run dialog box then press ok.
·On the command prompt line type "control panel" without the quotation marks.
·In control panel > folder options > file types > new (button) in the new window click advanced.
·In the file extension dialog box type the file extension to fix, ie: exe.
·In the drop down menu locate and select application > click ok.
Sometimes one of these works when you're having trouble with double clicking on the file in windows explorer:
(xl2003 menus) - Tools|Options|General|Uncheck "Ignore other applications"
(xl2007) Office Button|Excel Options|Advanced|General|Uncheck "Ignore other applications that use DDE"
Fix File Association Error When Launching Windows Explorer in Win7 - http://www.winhelponline.com/blog/fix-file-association-error-explorer-in-windows-7/
How to Set Defaults Successfully http://www.worldstart.com/how-to-set-defaults-successfully/print/