Windows 10: Windows Registry restore to defaults.

Hello,My PC was just affected by a virus which changed my whole registry and now some services like windows defender and firewall is not working. And I don't have a backup of it and system restore was also not working. So I thought that if someone who never changed his registry could export its registry and share to me and I would import it and restore my registry it. Can anyone send me his registry files and steps to do it if possible? Sincerly,Lallan Yadav

:)

 

How to restore registry values?

Hello,

Thank you for posting your query on Microsoft Community.

You can perform system restore and check if it helps:

Perform System restore.

I suggest you to perform system restore and select a date prior to the changes which was done with the registry values and check if the issue gets fixed.

To perform System restore:

• Press Windows key + X, select
  System.
• In the left pane, click on System Protection.
• Select the option to system restore
  > next. It will show all restore points already created.
• Select the date prior to the date on which you have made the registry changes.

Registry disclaimer

To do so: Important this section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these
steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article
in the Microsoft Knowledge Base:

322756 (How to back up and restore the registry in Windows )

How to back up and restore the registry in Windows



Try the above step and let us know the status of the issue. We will be glad to assist you further.

Thank you.

 

Lost default photo viewer after profile rebuild

Thanks Brink. I've tried those steps before i started searching Google. After the profile rebuild i don't have the Photo app listed to choose to make it default in either the system settings for default apps or the Open With option.

I can't even find it doing a search. Seems to have been removed somehow with the profile rebuild, which doesn't make sense.

Might be helpful to list what i've done I've done the open with check, the choose default program in the system menu, tried that in device manager default programs also. I've checked the programs and features Turn windows features on/off and it's not listed there (never thought it was but that was a suggestion), searched the MS Store, it's not listed there either.

I don't like playing in the registry unless i have defined steps and haven't found anything for this yet, just the Win7 version like in my OP.

 

How to backup and restore registry using only win10 iso command prompt

In a link it suggested several registry troubleshooting steps for a Windows with black screen.

For Windows 10 1909 how do you backup and restore one registry change using a windows 10 iso command prompt?

If more than one registry entry is modified how do you backup and restore a second change?

In addition to modifying one or two commands how do you backup and restore the whole registry when the only access is via a windows 10 iso command prompt?