Windows 10: How I can fix this or reset my PC to original?

I accidentally switched the every Default file Data in exefile document HKEY_CLASSES_ROOT in Registry Editor to "%1"%* and now I can't do anything with my computer.I canr open most of the files including Command Prompt..I always get this 3messages.You'll need a new app to open .exe file,Application not found and No such interface supported.Please help I don't know what to do.I even can't Reset my PC.My PC doesn't allow me.I click Get stared in the recovery section but nothing happens.

:)

 

How to factory reset Cisco 1700 Router

Hopefully I can help you here....its a very common thing to happen.


First, I take it you dont know the passwords for console access or telnet/ssh?

I will assume that these devices belong to you.

step 1. Plug a cisco console cable into a serial port on your pc
step 2. Plug other end into Cisco console port
step 3. Using hyperterm or putty or similar connect to the serial port
step 4. boot router, and make sure you clearly can see the output (this confirms you have good serial comms)
step 5. if this fails, adjust the comm port settings (9600, 8,1,n are the default)
step 6. now you have to do the only hard part...send the break command:

Break command list: Break Commands

Go down the list and match your OS and SW and try the sequence suggested.

If this fails several times do what I do: Install putty (free) and then to send a break so you can get into rommom just hit "ctrl-a b".

 

Reset PC to Original Setting

Hi Cheung,

Thank you for posting in Microsoft Community.

I understand the inconvenience you are facing in Windows. We will help you.

I suggest you perform a repair upgrade using the Windows 10 ISO
and check if it helps.

Refer: How to: perform a repair upgrade using the Windows 10 ISO file

Also refer: How to: Perform a clean install using Reset this PC in Windows 10

- suggestions by Andre Da Costa

Disclaimer: Performing a clean install or resetting the PC results in Data loss. I suggest you to back up your data and perform the above steps given in the link.

Hope this information helps. Keep us posted to help you better.

 

Windows is not activated following "reset this pc"

Thank you @NavyLCDR, I tried your suggestions but still have the same issue.
@Superfly, My main issue is the fact that sppsvc.exe won't start and throws the Error 5 (Access Denied). I tried changing permissions, taking ownership etc. but still have the same issue.

I guess my next step is another restore :-(. I assume you mean a fresh install because the original issue was caused after I clicked "Reset this PC" option in system settings?