1. Run the downloaded RStudio9.exe file.

2. Select the language of the install process:

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3. Run the Setup wizard.

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4. Read the License Agreement and accept its conditions.

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5. Read the warning that you must not install the program on the disk where the lost files resided.

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6. If necessary, change the destination folder for the program.

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7. If necessary, change the program group.

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8. Wait while the program is being installed.

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You may start the program as soon as the installation finishes.

1. Go to the Control Panel, select Programs and Features, and double-click R-Studio:

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2. Select the language of the uninstall process.

3. Start the Uninstall wizard.

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4. Start the uninstall process.

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5. Wait while the uninstall process finishes.

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You don't need an Internet connection to register R-Studio at the first time. But you need one if you're going to re-install R-Studio or prolong the registration with extended customer support.

1. Upon receiving the email with the Registration key, open the attachment, then select and copy the key.

2. Start R-Studio. The Please Register R-Studio Demo dialog box will appear.

3. Enter your registration information and then paste the Registration key. Do not try to type it manually.

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4. Click the OK button and wait for the Registration successful message.

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If you need to re-register R-Studio to another license type, go to the Help menu, select Register, and enter the new registration information.