# Installed driver 435.50 , now install of 418.37 for Tesla fails

**URL:** <https://forums.developer.nvidia.com/t/installed-driver-435-50-now-install-of-418-37-for-tesla-fails/83450>\
**Category:** Linux\
**Created:** [October 17, 2019, 6:15pm UTC](https://forums.developer.nvidia.com/t/installed-driver-435-50-now-install-of-418-37-for-tesla-fails/83450 "2019-10-17T18:15:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![cesces1](https://developer.download.nvidia.com/images/forums/profile-default-devtalk-84.png) [@cesces1](https://forums.developer.nvidia.com/u/cesces1)\
**Post date:** [October 17, 2019, 6:15pm UTC](https://forums.developer.nvidia.com/t/installed-driver-435-50-now-install-of-418-37-for-tesla-fails/83450/1 "2019-10-17T18:15:42Z")

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Ubuntu 18.04

Installed 435.50 from .run file. works.

Tried to install 418.37 for Tesla. from /var/log/… Fails

Tried to sudo apt purge nvidia. Says nvidia not installed. Tried other ways. Nothing worked.

Tried Cuda 10.1 .run install. Fails

Think I may not have the correct order or maybe only 418.37 has to be used with both VGA and Tesla.

If I could purge 435.50 them I could try only 418.37. Not sure what will purge 435.50.

nvidia-smi says 435.50 installed.

If I’ve abbreviate the details too much, then will provide more.

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**Author:** ![generix](https://sea2.discourse-cdn.com/nvidia/user_avatar/forums.developer.nvidia.com/generix/32/16024_2.png) [@generix](https://forums.developer.nvidia.com/u/generix)\
**Post date:** [October 17, 2019, 6:19pm UTC](https://forums.developer.nvidia.com/t/installed-driver-435-50-now-install-of-418-37-for-tesla-fails/83450/2 "2019-10-17T18:19:44Z")

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If you used the .run file to install, run it again with --uninstall option to uninstall. You should rather use a repo driver instead, though.