Skip to main content
Participant
January 20, 2016
Answered

unable to validate serial number

  • January 20, 2016
  • 3 replies
  • 4680 views

Hello,

im trying to install photoshop cs6 and i have a serial number but everytime that i try to enter it it says unable to validate ?

somebody told me that its maybe a problem with the host file ? could you be able to help me, its been doing that for all the other products also

thank you

This topic has been closed for replies.
Correct answer Govardhan.V

Steps to check Hosts file :

Windows:

1)Navigate to C:\Windows\System32\drivers\etc and look for file named hosts inside etc folder.

2)Copy the hosts file to Desktop and open the same with notepad.

Check whether you can see any Adobe related entries inside Hosts file like 127.0.0.1 activate.adobe.com.......etc??

Mac :

1) Right click on the Finder icon on dock and select "Go-To Folder" option.
2) You will get a text box, type-in below mentioned command and then hit 'Return' key.

/etc

3) It will open the etc folder, please look for file named "hosts" and copy the same to Desktop screen.

4)Double click on Hosts file , it will open it with TextEdit,

Check whether you can see any Adobe related entries inside Hosts file like 127.0.0.1 activate.adobe.com.......etc??


No Adobe entries in Hosts file?? Let us know ,

3 replies

Participant
November 8, 2020

I can find these entries in my Hosts file. While, I still have this problem, unable to validate serial number. I have no idea how to solve it.

Legend
November 8, 2020

If you can find these entries, they must be removed.

Participant
September 19, 2017

Called Adobe regarding this problem today - they had a tool you can download to solve the issue. It cleans up the host files on its own. Then, you restart your software, login to your Adobe account and everything works again!

Here is the link they provided:

Limited access error in Creative Cloud for desktop app

Govardhan.V
Govardhan.VCorrect answer
Participating Frequently
January 20, 2016

Steps to check Hosts file :

Windows:

1)Navigate to C:\Windows\System32\drivers\etc and look for file named hosts inside etc folder.

2)Copy the hosts file to Desktop and open the same with notepad.

Check whether you can see any Adobe related entries inside Hosts file like 127.0.0.1 activate.adobe.com.......etc??

Mac :

1) Right click on the Finder icon on dock and select "Go-To Folder" option.
2) You will get a text box, type-in below mentioned command and then hit 'Return' key.

/etc

3) It will open the etc folder, please look for file named "hosts" and copy the same to Desktop screen.

4)Double click on Hosts file , it will open it with TextEdit,

Check whether you can see any Adobe related entries inside Hosts file like 127.0.0.1 activate.adobe.com.......etc??


No Adobe entries in Hosts file?? Let us know ,

harism66394638
Participant
December 8, 2016

No Adobe entries in Hosts file