Regestry files deleted

[rovidu]

I accidentally deleted a registry file on HKEY_LOCAL_MACHINE\Software\Classes\.class i deleted .class extension file how to get it back. I haven't backup my regedit. And I haven't got that date restore point. Please help me.

 

[USAFRet]

I accidentally deleted a registry file on HKEY_LOCAL_MACHINE\Software\Classes\.class i deleted .class extension file how to get it back. I haven't backup my regedit. And I haven't got that date restore point. Please help me.

You can't.
If you knew the original values, you could just recreate it.

But what you deleted is not a 'file', but rather just a value in the Registry. Which is really just a database.

Never muck around in the Registry without first making a full backup of it.
Never run your PC without a full backup of your C drive, at the very least.

 

[colelouiscloud]

I think unning DISM will recover certain registry entries, but I think that is only if they are corrupt. USAFRet is right. Don't mess around with the registry unless you make a full backup and actually know what you are doing.

 

[rovidu]

I accidentally deleted a registry file on HKEY_LOCAL_MACHINE\Software\Classes\.class i deleted .class extension file how to get it back. I haven't backup my regedit. And I haven't got that date restore point. Please help me.

You can't.
If you knew the original values, you could just recreate it.

But what you deleted is not a 'file', but rather just a value in the Registry. Which is really just a database.

Never muck around in the Registry without first making a full backup of it.
Never run your PC without a full backup of your C drive, at the very least.

 

[rovidu]

What are the values of that .class database. Can anyone tell me

 

[Colif]

MERGED QUESTION
Question from rovidu : "Deleted a value in regedit"

Can anyone tell the values of the database on HKEY_LOCAL_MACHINE\SOFTWARE\CLASSES\.CLASS file. And tell me how to create it again. I deleted it from my registry.

Did you try running system restore back to a time before you made this change?

go to settings/update & security/recovery
under advanced startup, click restart now
this loads a blue menu
choose troubleshoot
choose advanced
choose system restore
pick a date prior to change
PC will restart and roll back system, hopefully recreating this registry key

As USAFRet said in the other post, it doesn't help to play in the registry, unless you make a backup first, and know what you are doing.

HKEY_LOCAL_MACHINE\SOFTWARE\Classes

Did you try running system restore back to a time before you made this change?

go to settings/update & security/recovery
under advanced startup, click restart now
this loads a blue menu
choose troubleshoot
choose advanced
choose system restore
pick a date prior to change
PC will restart and roll back system, hopefully recreating this registry key

As USAFRet said in the other post, it doesn't help to play in the registry, unless you make a backup first, and know what you are doing.

HKEY_LOCAL_MACHINE\SOFTWARE\Classes

MERGED QUESTION
Question from rovidu : "Deleted a value in regedit"

I accidentally deleted a registry file on HKEY_LOCAL_MACHINE\Software\Classes\.class i deleted .class extension file how to get it back. I haven't backup my regedit. And I haven't got that date restore point. Please help me. If anyone knows how to create that file . Please tell me. And tell me the values of that file

You essentially need to restore from a backup, if you don't have a 3rd party tool you can try Windows System Restore. Keep in mind that as it's a Windows service it may be affected.

If it doesn't work and you don't have a backup, you can try resetting the Master Boot Record. That will restore most data like registries. If that fails, you'll need to do a clean install of the OS.

If you don't have a backup, consider getting one. Free tools like Macrium Reflect or Rollback Rx work great.

MERGED QUESTION
Question from rovidu : "Deleted a value in regedit"

I accidentally deleted a registry file on HKEY_LOCAL_MACHINE\Software\Classes\.class i deleted .class extension file how to get it back. I haven't backup my regedit. And I haven't got that date restore point. Please help me. If anyone knows how to create that file . Please tell me. And tell me the values of that file

Wonder if this would fix it: https://www.tenforums.com/tutorials/16397-repair-install-windows-10-place-upgrade.html

 

[gardenman]

What are the values of that .class database. Can anyone tell me

I don't have any such key in my registry (on my desktop or VM).

That tells me that it's likely the key is from 3rd party software that you've installed (or you are using a different version of Windows from me, I'm using Windows 10 Home).

One additional thing you can try:

Windows automatically makes weekly (or so) backup of your registry and stores it in the Regback folder. Warning: If any of the files are 0 bytes and you copy the files over, your system will likely be unbootable from that point on and will require a re-install. Be careful, read the warnings on the page, find info from multiple sites about it before trying it. This page says it's for Windows 7, but it does work in Windows 10. I had to do this myself once (on Windows 10). Read The Warnings Carefully. https://www.sysnative.com/forums/windows-7-windows-vista-tutorials/3901-manually-restore-registry-its-backup-windows-windows-7-vista.html

What is the problem that you are having since you deleted the registry keys. Any problems at all? Any errors popping up? If you having a problem with a specific program, try reinstalling it.