Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Default File Type Associations - Restore

10 Feb 2018   #880

Windows 7 Ultimate x64

Finally, after looking through whole internet I've found this tutorial.

I had problem with .pdf and .docx. I downloaded .reg for .pdf and edited it to suit .docx files by changing 3 lines in .pdf reg file. Simple and works perfectly.

Thanks, Brink.

My System SpecsSystem Spec
10 Feb 2018   #881

64-bit Windows 10 Pro

I'm glad it could help Globoo, and welcome to Seven Forums. :)
My System SpecsSystem Spec
11 Jun 2018   #882

Windows 7 SP1 Home Premium 64bit [x64]

Hi Brink.

I think you need to add SYS or "System File" extension to your list of Default file extension type associations.

I'm recently fixing my cousin's HP pavilion dv6648se laptop with Win7 Home premium 32bit and some of the file type associations are messed up, including the DLL and SYS file types. the DLL & SYS file types seem to be opening up in Adobe Acrobat Reader DC as default, which is incorrect and I need to reset them or "un-associate" them from Adobe.
My System SpecsSystem Spec
11 Jun 2018   #883

64-bit Windows 10 Pro

Hello erpster.

SYS has now been added to the list.
My System SpecsSystem Spec

17 Jun 2018   #884

Windows 7 Ultimate x32

I'd be very grateful if you could add the CRL file extension to your list so that it is available for restoring to default.
With thanks in advance,
My System SpecsSystem Spec
17 Jun 2018   #885

64-bit Windows 10 Pro

Hello Marina, and welcome to Seven Forums.

CRL has been added to the list. I hope it helps.
My System SpecsSystem Spec
28 Jun 2018   #886

Windows 7 Enterprise x64

Hi Brink,

there seems to be an error in the .reg file for ps1:

Line 46 says [-HKEY_CLASSES_ROOTS\SystemFileAssociations\.ps1] (note the superfluous 'S' in ROOTS).

Since it seems to work without this, maybe deleting the key at all is superfluous :)
(The key HKEY_CLASSES_ROOT\SystemFileAssociations\.ps1 doesn't even exist for me, even though I changed the default file association.)

My System SpecsSystem Spec
28 Jun 2018   #887

64-bit Windows 10 Pro

Thank you Marcus, and welcome to Seven Forums.

The .reg file for ps1 has now been fixed.
My System SpecsSystem Spec

 Default File Type Associations - Restore

Thread Tools

Similar help and support threads
Thread Forum
Set file type associations to a specific version of an application
Hello, I have several versions of an application (Adobe After Effects) installed (I help test out prerelease versions of the software - which is nice) and I'd like to be able to set the precise application / file type association. If I get a file's properties and 'Change...' the 'Opens with:'...
MS Word not in default file associations list
I have installed MS Office Professional 2003 on Windows 7. I cannot get Word to associate with .doc files to open files from Windows. Word is not there as an option to choose as a default program in "Open with" or via "Associate a file type...". I can browse to find WINWORD.EXE within...
Microsoft Office
How to Backup Windows 7 Default (Customized) File Associations
Does anyone know how you can backup your personal customizations to the Default File Locations (e.g., my *.txt isn't assocated with Notepad, but Notepad2). Is it in the registry somewhere?
Backup and Restore
How can i fix ppt and pptx file type Associations?
i can not open powerpoint file with double click , how can i fix ppt and pptx file type Associations
Microsoft Office

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 18:59.
Twitter Facebook Google+