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docha_art
docha_art
Participant
January 15, 2026
Answered

Illustrator CS5：過去FAQでは可能とされていたPC入れ替え時のライセンス認証は、現在は完全に無効という理解で正しいでしょうか

  • January 15, 2026
  • 2 replies
  • 299 views

以前、Illustrator CS5（永続ライセンス）を使用していましたが、PCの買い替えに伴い再インストールを行おうとしたところ、既にアクティベーション上限に達していると表示されました。

過去のAdobe公式FAQでは、・PCの入れ替えや故障時でも新しいコンピュータでライセンス認証が可能と説明されていましたが、Adobeサポートに確認したところ、旧製品のアクティベーションサーバーは廃止されており、現在はその運用は保証されていない、という回答を受けました。

本投稿は、復旧方法を求めるものではなく、「過去の公式FAQで案内されていた運用は、現在は完全に無効」という理解で正しいのかを、コミュニティの知見として確認したいという目的です。

同様の経験がある方、公式見解をご存じの方がいらっしゃれば、ご教示いただけると助かります。

Correct answer Doug A Roberts

Unfortunately this article is now the only support available for Creative Suite perpetual license users who have issues with activation count:

 

Activation limit reached or Sign-in failed error

 

You need access the the computer the software was activated on to deactivate it. Adobe can no longer edit activation counts to circumvent these issues.

2 replies

Jacob Bugge
Community Expert
Jacob BuggeCommunity Expert
Community Expert
January 15, 2026

kazuさん、

 

In addition to what Doug wrote, you may also read this recent thread with some links and an Adobe staff reference in this reply,

https://community.adobe.com/t5/download-install-discussions/problem-mit-der-aktivierung-von-adobe-cs5/m-p/15654670#M595491

 

In addition, you may also consider asking in the Japanese forum,

 

日本語フォーラムで質問することもできます、

https://community.adobe.com/t5/illustrator%E3%83%95%E3%82%A9%E3%83%BC%E3%83%A9%E3%83%A0/bd-p/illustrator-jp?page=1&sort=latest_replies&filter=all

 

docha_art
docha_artAuthor
Participant
January 15, 2026

I'll try posting on the Japanese forum. Thank you very much.

Jacob Bugge
Community Expert
Jacob BuggeCommunity Expert
Community Expert
January 15, 2026

For my part you are welcome, kazuさん。

 

I hope you will post a link here to your new post there so it is possible to follow it and hopefully see a good solution.

 

docha_art
docha_artAuthor
Participant
January 15, 2026

I previously used Illustrator CS5 (perpetual license). When attempting to reinstall it after replacing my PC, I was informed that the activation limit had already been reached.

According to old official Adobe FAQs, it was stated that license activation was possible on a new computer even in cases of PC replacement or hardware failure. However, after contacting Adobe Support, I was informed that the activation servers for older products have been discontinued, and that this operation is no longer guaranteed.

This post is not intended to request a workaround or recovery method. Rather, I would like to confirm whether it is correct to understand that the license activation process described in the old official FAQs is now completely invalid.

If anyone has had a similar experience or is aware of an official statement regarding this matter, I would appreciate your insights.

 

※Note: This post was written using a translation tool.

Doug A Roberts
Community Expert
Doug A RobertsCommunity ExpertCorrect answer
Community Expert
January 15, 2026

Unfortunately this article is now the only support available for Creative Suite perpetual license users who have issues with activation count:

 

Activation limit reached or Sign-in failed error

 

You need access the the computer the software was activated on to deactivate it. Adobe can no longer edit activation counts to circumvent these issues.

    docha_art
    docha_artAuthor
    Participant
    January 16, 2026

    It seems that way. I also posted in the Japanese community, but I received the same response that it's not possible, so I'll give up on CS5 and use CC instead.
    Thank you.

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