Missing HEVC-codec when rendering video in premiere (25.5)

Question

When rendering video from drone footage (Codec: MPEG-H Part2/HEVC (H.265) (hvc1)) I get the error "Failed to install the following item: C:\users\publicx\documents\AdobeInstalledCodecsTier2\4.3\mc_enc_hevc.dll". "Close your other applications, make sure you have write access to this location and that there is enough free space on your hard drive. Alternatively, try deleting the folder C:\users\publicx\documents\AdobeInstalledCodecsTier2 and restarting the application."

When I then click OK, I get the following message: "This file requires the HEVC codec, which is included with a Creative Cloud membership. To upgrade to a paid membership, go to

I've checked everything, and I have write access to the locations. There's also more than enough disk space. In fact, last weekend there were no problems with these files in the same version of Adobe Premiere (25.5) and Adobe Media Encoder (25.6). I also have a Creative Cloud membership. It's a subscription every year.

There's one odd thing. I'm rendering with an enabled NVIDIA Geforce RTX 4070 Ti card when the error occurs. I've also disabled the Intel graphics adapter on the motherboard (MAG Z890 TOMAHAWK WIFI (MS-7E32)). When I enable the motherboard's graphics adapter, the video renders, but much slower.

I work on windows 11 pc

Stan Jones · Accepted Answer

@Leontine1994,

See this thread and the correct solution:

https://community.adobe.com/t5/premiere-pro-discussions/unable-to-install-mc-enc-hevc-dll-for-hevc-decoding-encoding/td-p/13590930

This issue has occurred over several years, and there does not appear to me to be a reliable solution. Adobe installs its own versions of the hevc encoder/decoder, and it is DIFFERENT for various PR versions. The directory and the file versions themselves must match.

For example, I think the PR 25 path on Windows is:

C:\Users\Public\Documents\AdobeInstalledCodecsTier2\4.3

Some of the occasional fixes appear to be related to permissions.

Stan

John T Smith · Answer

I don't use HEVC but I do have Win11 and a couple days ago there was a Windows update... if you have updated Windows you MAY need to reinstall the codec

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