升级之前卸载旧版本。

Uninstall the previous version before upgrading.

youdao

如果您已经安装该产品的较早的一个版本，那么在安装新的版本之前，必须先卸载以前的版本。

If you installed an earlier version of this product, you must uninstall it before installing this new version.

youdao

注意：如果您正在从之前的TM 1版本升级，例如TM 1 9.4.1，如果您要将TM 1 9.5安装到相同的目录中，则不必卸载旧版本。

Note: if you are upgrading from a prior TM1 version such as TM1 9.4.1, it is not necessary to uninstall the prior version if you will be installing TM1 9.5 into the same directory.

youdao