What you can do in the meantime is to download and install an older version of Java JDK 15.0.1 (64-bit). For those interested in downloading the most recent release of Java Development Kit (64-bit) or reading our review, simply click here. All old versions distributed on our website are completely virus-free and available for download at no cost.
To use rJava in 64-bit R, you need Java for Windows x64. To build or check R packages with multi-arch (the default) you need to install both Java For Windows x64 as well as Java for Windows x86. On Win 64, the former installs in C:\Program files\Java\ and the latter in C:\Program Files (x86)\Java\ so they do not conflict.
Remember that you must install Java, Python, and Eclipse all as 64-bit applications (for some, like Eclipse, you have no choice). Downloading. Click Java Downloads. The following page will appear in your browser. Click the third red-bulleted item Windows Offline (64-bit). This is the 64-bit edition.
Java updates can also be removed using the Settings application in Windows 10. Open the Apps & Features page in the Settings app (Run -> ms-settings:appsfeatures) and then look for the Java update in the list of apps installed. Click on the update you want to remove and click Uninstall. If asked for confirmation, click Uninstall again.
What you can do in the meantime is to download and install an older version of Java JRE 8 Update 301 (64-bit). For those interested in downloading the most recent release of Java Runtime Environment (64-bit) or reading our review, simply click here. All old versions distributed on our website are completely virus-free and available for download