Below are some suggested steps and tips to fix a missing or corrupted system restore point on your PC:

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1. Unless otherwise specified, restart your computer before proceeding.
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2. Create System Restore Point manually if System Restore tool does not work.
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3. Disable and then re-enable System Restore in the System Properties window.
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4. Use the System Restore tool to back up files or reinstall older versions of files.
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5. If the Error Message suppressed, install the relevant Service pack
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6. Perform a full system scan with a reliable anti-virus tool.
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7. Run sfc/scannow command in the Command Prompt.