Install error 1327 | "Invalid Drive" | CS4, CS5, Acrobat, Reader

On this page

Issue: Error 1327 when installing or updating a CS4 or CS5 product, Acrobat, or Reader on Windows
Solutions

Applies to: Adobe Acrobat Adobe After Effects CS4 Adobe After Effects CS5 Adobe Dreamweaver CS4 Adobe Dreamweaver CS5 Adobe Fireworks CS4 Adobe Fireworks CS5 Adobe Illustrator CS4 Adobe Illustrator CS5 Adobe InCopy CS4 Adobe InCopy CS5 Adobe InDesign CS4 Adobe InDesign CS5 Adobe Photoshop CS4 Adobe Photoshop CS5 Adobe Premiere Pro CS4 Adobe Premiere Pro CS5 Contribute CS4 Contribute CS5 Creative Suite CS4 Creative Suite CS5 Encore Flash Professional CS4 Flash Professional CS5 Photoshop Extended Reader

When you install or update a CS4 or CS5 product, Acrobat, or Adobe Reader on Windows, you receive the following error:

Error 1327.Invalid Drive: [drive letter].

Determine the letter of the invalid drive that is causing the installation failure. For CS4 or CS5 installations, the drive letter appears in the install log following the error 1327 code. For Acrobat or Adobe Reader installations, the drive letter appears in the error window.

For more assistance finding the error in Creative Suite 4 installations, see Troubleshoot installation with install logs | CS3, CS4.
For more assistance finding the error in Creative Suite 5 installations, see Troubleshoot CS5 installation with install logs.

Choose Start > All Programs > Accessories, right-click Command Prompt, and choose Run as Administrator.

Type subst Z: "C:\Windows" and press Enter.

Note: The example above shows the letter Z as the drive letter. When you type, replace the Z with the letter of the invalid drive from your install error or log.

Reinstall your Adobe product.

Go to the Microsoft support page http://support.microsoft.com/kb/327763.

Scroll down to the Resolution section, and follow steps 1 through 7.

Reinstall your Adobe product.

Twitter™ and Facebook posts are not covered under the terms of Creative Commons.

Legal Notices | Online Privacy Policy

Install error 1327: "Invalid Drive" | CS5, CS4, Acrobat, Reader | Windows

Issue: Error 1327 when installing or updating a CS4 or CS5 product, Acrobat, or Reader on Windows

Solutions

Solution 1: Temporarily remap the invalid drive.

Solution 2: Run the Fix It solution on the Microsoft support website.

Ask the Community

Contact Us