unable to validate serial number

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Jan 19, 2016

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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

Adobe Community Professional
Correct answer by Brucgovn | Adobe Community Professional

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 ,

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unable to validate serial number

New Here ,
Jan 19, 2016

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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

Adobe Community Professional
Correct answer by Brucgovn | Adobe Community Professional

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 ,

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Jan 19, 2016 0
Adobe Community Professional ,
Jan 19, 2016

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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 ,

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Jan 19, 2016 0
New Here ,
Dec 07, 2016

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No Adobe entries in Hosts file

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Dec 07, 2016 0
New Here ,
Sep 19, 2017

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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

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Sep 19, 2017 1
New Here ,
Nov 08, 2020

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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.

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Nov 08, 2020 0
Most Valuable Participant ,
Nov 08, 2020

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

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Nov 08, 2020 0