Adobe Creative Cloud Error Code 42 — What It Means & How to Fix It

What Does This Error Mean?

Error 42 in Creative Cloud means Adobe could not verify your license. Creative Cloud checks your subscription regularly. When that check fails — usually because of a network issue, a corrupted local license file, or a sign-in problem — it shows Error 42. Your apps may still work for a while, but eventually they will go into trial mode if the license is not verified.

Affected Models

Adobe Creative Cloud Desktop App
All Creative Cloud applications on Windows and macOS

Common Causes

Your internet connection is blocking Adobe's license servers
A firewall, VPN, or proxy is preventing Creative Cloud from contacting Adobe
The local license file on your computer is corrupted
You are signed in with the wrong Adobe account (e.g., a personal account instead of a work account)
Adobe's license servers are temporarily unavailable

How to Fix It

Sign out and back in to Creative Cloud. Open the Creative Cloud desktop app, click your profile picture, and choose 'Sign Out'. Then sign back in with your Adobe ID.

A fresh sign-in forces Creative Cloud to re-verify your license from scratch.
Check your internet connection. Make sure you can browse the web normally. If you are on a VPN, try disconnecting from it and then signing in to Creative Cloud.

VPNs sometimes block Adobe's license servers, especially corporate VPNs with strict filtering.
Delete the local license files. On Windows, navigate to C:\ProgramData\Adobe\SLStore and C:\ProgramData\Adobe\SLCache. Delete the contents of both folders. Restart Creative Cloud.

ProgramData is a hidden folder. In File Explorer, show hidden items under the View tab.
Make sure your Creative Cloud subscription is active. Log in to account.adobe.com and check your plan status. A lapsed payment can trigger Error 42.

Even a one-day lapse in payment can cause license verification to fail.
Reinstall the Creative Cloud desktop app. Use the Adobe Cleaner Tool to remove it cleanly, then download and install a fresh copy from adobe.com.

A corrupted Creative Cloud app installation can cause persistent Error 42 even when the license is valid.

When to Call a Professional

If you are at a workplace where network policies restrict access to Adobe's servers, your IT department needs to whitelist Adobe's license verification domains. Adobe provides a list of required domains for IT administrators.

Frequently Asked Questions

Will Error 42 make my apps stop working?

Not immediately. Adobe allows a grace period — typically 99 days — during which apps continue to work even without verified license contact. However, if the license is never verified, apps will eventually switch to trial mode. Fix the error soon rather than relying on the grace period.

I am definitely paying for Creative Cloud. Why is Error 42 appearing?

Error 42 is about whether Creative Cloud can reach Adobe's servers, not whether your subscription is paid. Even active subscribers see this error if there is a network or software problem preventing license verification. Check for VPNs, firewalls, or outdated software.

Is Error 42 the same as 'trial mode' or 'license expired'?

They are related but different. Error 42 is the verification failure. If Error 42 is not fixed for a long time, the app eventually enters trial or expired mode. Fixing Error 42 restores normal operation without needing to re-enter payment info.