pdfhandler

Forum|Forum|1 month ago
March 2, 2026
3 replies
43 views

i'm having trouble with the PDF handler in Outlook and Windows Explorer. After reinstalling Adobe from 32-bit to 64-bit, the PDF handler works, but after a clean install of Adobe Acrobat 64-bit, the PDF handler doesn't work on my workstations. Please help.

Changing the value of Computer\HKEY_CLASSES_ROOT\.pdf\ShellEx\{8895b1c6-b41f-4c1c-a562-0d564250836f} to {DC6EFB56-9CFA-464D-8880-44885D7DC193} has no effect

W

wojciech_6983Author

Participating Frequently

I've tested such trivial solutions, including verifying individual entries in the system registry. I'm asking for specific technical assistance.Win 11. version adobe 25.001.21223

W

wojciech_6983Author

Participating Frequently

I've tested such trivial solutions, including verifying individual entries in the system registry. I'm asking for specific technical assistance. Win11 Version Adobe: 25.001.2122

T

Tariq Dar

Legend

Hi @wojciech_6983,

Sorry for the troubled experience, and thanks for reaching out.

We could try two scenarios here:

Launch Acrobat. Close Outlook
Menu > Help > Repair Acrobat Installation.
Restart the machine and try again.

If the issue persists:

Close Outlook and Acrobat
Uninstall Acrobat using the Acrobat cleaner tool: https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/cleaner.html
Reinstall Acrobat, ensure Outlook is closed.
Launch Acrobat.
Launch Outlook and check.
If the issue persists, restart the machine and try again.

Let us know how it works at your end. If there is any error message, please share a screenshot of it. And share the OS name and version, as well as the Acrobat version installed on your machine.

~Tariq

W

wojciech_6983Author

Participating Frequently

Win11. Version adobe 25.001.21223. I've tested such trivial solutions, including verifying individual entries in the system registry. I'm asking for specific technical assistance.

T

Tariq Dar

Legend

@wojciech_6983 - Could you confirm if your MS Office Outlook is a 32 or 64-bit version?

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