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Windows 7: how do i change files 'open with' to default

24 Aug 2013   #11

64-bit Windows 10 Pro

Hello 1shinkim1,

By default, Windows 7 does not have .dds files to be associated to open with any programs. If you like, you could download and merge the .reg file I posted below, then restart the PC to undo what you set to open with to see if that may help. After merging, click on Run, Yes (UAC), Yes, and OK to approve.

Hope this helps, :)

My System SpecsSystem Spec
04 Sep 2013   #12

windows 7 home premium 64bit
late replied sorry

im sorry for the late reply. i was away form home so i could not see the reply.
i just saw the reply and try to do it buty i dont understand what you mean.

i merged and click 'run' then 'yes' and 'ok'. there was no two 'yes' to click and also im not sure if i need to restart the computer after or before.

either way i did both but does not think it worked. if i try to click the file it still open with window image viewer.....

still thank for the reply and sorry for the late reply from me
My System SpecsSystem Spec
04 Sep 2013   #13

64-bit Windows 10 Pro

No problem. In that case, try doing the same with the .reg file below to unassociated .dds files, then restart the PC afterwards.

Attached Files
File Type: reg unassociate_dds.reg (496 Bytes, 8 views)
My System SpecsSystem Spec

06 Sep 2013   #14

windows 7 home premium 64bit

it still not working. i still open with window photo viewer......
so im wondering if im doing wrong.....

do i just need to download the one that below you in specific place and do something before double clicking to make it work??

i also try to see if the dds file will change if i redownload it but did not work out.
My System SpecsSystem Spec
06 Sep 2013   #15

64-bit Windows 10 Pro

Here's the steps to check to see:

You'll need to be logged in as an administrator.

Download the .reg file to your desktop.

Right click on the downloaded .reg file, and click on Merge.

If prompted, be sure to click on Run, Yes (UAC), Yes, and OK to approve the merge. If you miss one, it will not work.

Restart the computer to fully apply.
My System SpecsSystem Spec
06 Sep 2013   #16

windows 7 home premium 64bit

im on administrator and i did the right click and merge.

but i don't have the process of run, yes (uac), yes, and ok.
i only have run, yes, and ok.

im not sure what is this (UAC) mean.....
My System SpecsSystem Spec
06 Sep 2013   #17

64-bit Windows 10 Pro

That's fine. You only get the UAC (User Account Control) prompt to say "Yes" to if you have UAC set to "Always notify".
User Account Control - UAC - Change Notification Settings
If you check in Default Programs below, do you still have "Notepad" listed as the "current default program" for the .dds file type?
Default File Type Associations - Restore
You might see if you may be able to use this below to unassociated .dds files.
File Extension Type - Unassociate
My System SpecsSystem Spec
06 Sep 2013   #18

windows 7 home premium 64bit

thank for the info that you gave me about UAC

now i do get the option for notepad in 'open with' section if this is what you mean.

also i try to do the stuff that you asked but did not work.
i tried both option but still did not change the .dds file from opening window photo viewer.
My System SpecsSystem Spec
06 Sep 2013   #19

64-bit Windows 10 Pro

Hmm, ok.

Please go ahead and export the key from this location below in your registry, and upload it here to see what it shows.

My System SpecsSystem Spec
08 Sep 2013   #20

windows 7 home premium 64bit

im not sure what that you mean but if you mean tha to put that key that you say to the search on start i show the unassociat DDS file that i got from you posted before
My System SpecsSystem Spec

 how do i change files 'open with' to default

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