Disable synchronization of mail, contacts, calendar, and user data
- Windows onlyThis script improves your privacy on Windows
- Multiple actionsThis page belongs to a category, containing some changes with similar goal.
- Impact: Medium
System Functionality / Data Loss Risk: Moderate
This action improves privacy with minimal impact when you run the recommended script.
This action improves privacy with some impact when you run the recommended script. - Batch (batchfile)These changes use Windows system commands to update your settings.
- 2 scripts
- No subcategories
- Administrator rights requiredThis script requires privilege access to do the system changes
- Fully reversible
You can fully restore this action (revert back to the original behavior) using this website.
The restore/revert methods provided here can help you fix issues.
Overview
This category contains scripts that improve privacy by turning off services that synchronize mail, contacts, calendars, and other user data.
Turning off these services stops the automatic sharing and storing of personal information across devices and apps, crucial for privacy.
This script is only recommended if you understand its implications.
Some non-critical or features may no longer function correctly after running this script.
This script can be fully reversed to restore changes if something goes wrong.
Apply Now
Choose one of two ways to apply:
Download script
Download and run the script directly- No app needed
- Offline usage
- Easy-to-apply
- Free
- Open-source
High — Advanced Privacy
- For advanced privacy-conscious users
- May affect some features
Read more about High and other protection levels
Help
How to apply or restore "Disable synchronization of mail, contacts, calendar, and user data" using script
- ≈ 2 min to complete
- Tools: Web Browser
- Difficulty: Simple
- ≈ 5 instructions
- 1
Download
Download the script file by clicking on the button above.
Use button above to restore changes. - 2
Keep the file
If warned by your browser, keep the file. - 3
Open
Open the downloaded file. - 4
Exit
Once it's done, press any key to exit the window. - 5
Restart
Restart your computer for all changes to take effect.
Apply with privacy.sexy
Guided, automated application with safety checks- Recommended for most users
- Includes safety checks
- Shows the code
- Free
- Open-source
- Popular
- Offline/Online usage
Help
How to apply or restore "Disable synchronization of mail, contacts, calendar, and user data" using privacy.sexy
- ≈ 3 min to complete
- Tools: privacy.sexy
- Difficulty: Simple
- ≈ 4 instructions
- 2
Choose script
- Search for the category name: Disable synchronization of mail, contacts, calendar, and user data
- Check the category by clicking on the checkbox of the category.
- 3
Run
Click on ▶️ Run button at the bottom of the page.This button only appears on desktop version (recommended). On browser, use 💾 Save button.
Explore This Guide
- 2 Privacy settings
Choose what to protect based on your needs: Click any option to learn more about what it does. Each change can be applied and reversed individually.
Some settings and commands may require technical knowledge to apply correctly.
Disable User Data Storage
This script disables the User Data Storage ("UnistoreSvc") service. This service stores user data like contact info, calendars, and messages. Disabling this service boosts privacy by blocking app access to this data. This script is recommended for users who prioritize privacy over the convenience of synchronized user data.
Disable Sync Host
This script turns off the Sync Host ("OneSyncSvc") service. This service syncs mail, contacts, calendars, and other user data across devices and apps. Disabling this service stops the automatic sharing of personal information, enhancing privacy. This script is recommended for individuals prioritizing the security of their personal data over the functionality of data synchronization.
Similar Guides
Wider Goal
Guides below includes this guide to achieve a wider goal.See other more general settings that includes this one as one of its actions.
These plans combine multiple privacy settings, including this one, for stronger protection.
- Disable non-essential services
- Remove bloatware
This category contains scripts designed to enhance privacy by disabling system services that are not essential for your operating system's core functions. A Window...
Remove bloatware — This system calibration provides an easy-to-follow breakdown of how. Besides that, this documentation offers practical insights on the procedure...
Same Goal
Other guides in Disable non-essential servicesSee settings that are in the same category as this guide.
Using other actions in the same category may help you achieve your goal better.
See all 8 guides
About the Creators
These people have authored this documentation and written its scripts:
undergroundwires- Certified security professional
- 7+ years experience securing banks
- Open-source developer since 2005
- EU advisor, Public Speaker, Moderator
- Open-Source Contributors
- Hundreds across the globe
- Testers, reviewers, developers
- Companies, military agencies
- Community since 2017
Reviewed By
This guide has undergone comprehensive auditing and peer review:Expert review by undergroundwires
- Verified technical accuracy and editorial standards
- Assessed system impact and user privacy risks
Public review by large community
- Privacy enthusiasts and professionals peer-reviewed
- Millions of end-users tested across different environments
History
We continually monitor our guides, their impact and all other privacy options. We update our guides when new information becomes available. On every update, we publicly store who made the change, what has been changed, why the change was made and when the change was made.