Terms of Service

Effective date: 9 November 2026 · Last updated: 9 November 2026

The short version. You buy a license for one (or three) PCs. It is yours permanently, it is not a subscription, and you can get a full refund within 30 days for any reason. The software changes how Windows locates installed programs, so back up first — and read section 9, because that is the part that matters if something goes wrong.

1. Who we are

ZMasterClean ("the Software", "we", "us") is published and sold by [YOUR FULL LEGAL NAME], established in [YOUR COUNTRY] with a registered address at [YOUR REGISTERED ADDRESS]. VAT identification number: [YOUR VAT NUMBER]. You can reach us at 350400341@qq.com.

Payments for the Software are processed by Creem, which acts as the merchant of record for the transaction. This means your card statement will show Creem, and Creem is responsible for calculating, collecting and remitting any VAT, GST or sales tax that applies to your purchase.

2. Accepting these terms

By downloading, installing, activating or using the Software, you agree to these Terms of Service and to the license terms in section 5. If you do not agree, do not install the Software, and uninstall it if you already have.

If you are accepting on behalf of a company, you confirm that you have authority to bind that company, and "you" refers to the company.

3. Eligibility

You must be at least 18 years old, or the age of majority in your jurisdiction, to purchase a license. The free version may be used by anyone competent to operate a Windows computer responsibly.

4. The free version

The free version of the Software is provided at no charge, with functional limits described on the pricing page. It is licensed, not sold, and it is provided under the same warranty disclaimer and liability limitations as the paid version. We may change what the free version includes in future releases.

5. License grant

Subject to payment of the applicable fee and to your compliance with these Terms, we grant you a non-exclusive, non-transferable, perpetual license to install and use the Software for your own personal or internal business purposes, on the number of machines stated in the plan you purchased:

Free — unlimited machines, limited functionality.
Pro — one (1) physical machine per license key.
Studio — three (3) physical machines per license key.

Virtual machines count as separate machines. A "perpetual" license means the version you purchased will not stop working due to the passage of time; it does not entitle you to new releases beyond the update period described in section 11.

5.1 What you may not do

Copy, resell, sublicense, rent, lease or distribute the Software or your license key.
Reverse engineer, decompile or disassemble the Software, except where such restriction is prohibited by applicable law.
Remove, obscure or alter any copyright, trademark or attribution notice.
Circumvent, disable or tamper with the license activation mechanism.
Use the Software to operate a commercial service for third parties, such as a paid "PC cleanup" business, without a separate written agreement.
Use the Software on a machine you do not own or have not been authorised to administer.

A license key that is shared publicly, resold, or used beyond its machine allowance may be revoked without refund.

6. Price, payment and refunds

6.1 Price

The price shown at checkout is the total price, inclusive of any applicable taxes, unless stated otherwise. Prices are shown in US dollars. Your bank may apply a currency conversion fee, which is outside our control. We may change prices at any time, but a change never affects a license you have already purchased.

6.2 Refunds — 30-day money-back guarantee

You may request a full refund within thirty (30) days of purchase, for any reason or for no reason. Email 350400341@qq.com from the address used at checkout, or include your order number. We process refunds through the original payment method, normally within five business days of approval.

We do not require you to justify the request, complete a survey, or accept a credit note instead of money. If your request is within the 30-day window, it is approved.

6.3 EU/EEA and UK consumers — right of withdrawal

If you are a consumer resident in the European Union, the EEA or the United Kingdom, you normally have fourteen (14) days from the date of purchase to withdraw from a distance contract without giving a reason.

The Software is digital content delivered immediately. By completing checkout and activating your license, you expressly consent to immediate delivery and acknowledge that you lose the statutory right of withdrawal once the license key has been issued — as permitted by Article 16(m) of Directive 2011/83/EU and the equivalent UK provisions.

This does not reduce your rights under section 6.2. Our 30-day guarantee is longer than the statutory period and applies to you regardless of the paragraph above.

6.4 Chargebacks

Please contact us before filing a chargeback with your bank. A chargeback takes weeks, whereas a refund takes days. If a payment is reversed without contact and we believe the charge was valid, we may suspend the associated license key pending resolution, and may recover reasonable costs incurred in disputing the charge.

7. Delivery and activation

The installer is available for download immediately after purchase, and a license key is issued by email and displayed on the confirmation page. If you do not receive your key within one hour, check your spam folder and then contact 350400341@qq.com.

Activation requires an internet connection once. After activation the Software operates fully offline. If you replace your computer, deactivate the license on the old machine first (About → Deactivate). If the old machine is no longer available, contact support and we will reset the activation.

8. Acceptable use

You agree not to use the Software:

On systems you are not authorised to administer, including employer-owned devices without permission from your IT department.
To interfere with security software, monitoring agents or endpoint management tools.
In any way that violates applicable law, including data protection and export control law.
To process data belonging to third parties without their consent or a lawful basis.

9. Data risk — read this before migrating anything

The Software modifies file system locations and the registry entries Windows uses to locate installed programs. These are powerful operations. A power failure, a failing disk, a forced shutdown, interference from security software, or an unexpected interaction with a particular application can cause data loss, application breakage, or in the worst case an unbootable system.

You must maintain a backup of any data you cannot afford to lose before using the migration features. We recommend a complete system image before your first migration.

The Software includes a verification step and an automatic rollback if an application fails to launch after being moved. This is a safety net, not a guarantee. It cannot protect against failures that occur outside the Software's control, such as hardware faults.

The Software intentionally does not offer to relocate Windows system files, driver stores, or anything within the C:\Windows directory, because those operations carry an unacceptable risk of rendering a machine unbootable.

10. Intellectual property

The Software, its source code, interface, documentation, name and logo are owned by us or our licensors and are protected by copyright and other intellectual property laws. These Terms grant you a license to use the Software; they do not transfer ownership of any intellectual property.

You retain all rights to your own data. We claim no license to your files, and the Software does not transmit file names, file contents or directory listings to us. See the Privacy Policy for details.

11. Updates and support

A paid license includes updates for twelve (12) months from the date of purchase. During that period you may download and install any new release at no extra cost. After the period ends, the version you hold continues to function; you simply will not receive new builds unless you choose to renew, which is optional.

Support is provided by email at 350400341@qq.com. We aim to respond within one business day for Pro and the same day for Studio. Support covers installation, activation, defects and usage questions. It does not extend to general Windows troubleshooting, hardware diagnosis, or recovering data deleted by you.

We may release updates that change or remove features, or that are required to remain compatible with new Windows builds. We are not obliged to support operating systems that their manufacturer no longer supports.

12. Disclaimer of warranties

To the maximum extent permitted by applicable law, the Software is provided "as is" and "as available", without warranty of any kind, express or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, title and non-infringement.

We do not warrant that the Software will be uninterrupted or error-free, that it will detect every removable file, that it will successfully relocate every application, or that it will be compatible with every configuration of hardware and software. Some applications are deliberately excluded from migration because moving them is unsafe.

Nothing in these Terms excludes or limits any warranty or right that cannot lawfully be excluded or limited, including your statutory rights as a consumer under the law of your country of residence. If you are a consumer in the EU, EEA or UK, you benefit from mandatory statutory guarantees of conformity, which apply in addition to this section.

13. Limitation of liability

To the maximum extent permitted by applicable law, we are not liable for any indirect, incidental, special, consequential or punitive damages, nor for any loss of profit, revenue, business, goodwill, data, or cost of substitute services, arising out of or relating to your use of the Software — whether based on contract, tort, strict liability or otherwise, and whether or not we were advised of the possibility of such damage.

Our total aggregate liability arising out of or relating to these Terms or the Software is limited to the amount you actually paid us for the license in the twelve (12) months preceding the event giving rise to the claim.

Nothing in this section limits liability for death or personal injury caused by negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot lawfully be limited.

14. Indemnity

You agree to indemnify and hold us harmless from claims, damages and reasonable legal costs arising from your breach of these Terms, your misuse of the Software, or your use of the Software on systems you were not authorised to modify.

15. Termination

These Terms remain in effect until terminated. We may suspend or terminate your license if you materially breach them — in particular section 5.1 — after giving you notice and, where the breach is capable of remedy, a reasonable opportunity to remedy it. On termination you must uninstall the Software and stop using your license key.

Termination for breach does not affect your right to a refund under section 6.2 if you are within the 30-day window, unless the breach involved fraud or unlawful conduct.

16. Changes to these terms

We may update these Terms to reflect changes in the Software, in law, or in how we sell it. The version in force is the one published on this page, with the effective date shown at the top. Material changes will be announced on the website at least fourteen (14) days before they take effect. Changes do not retroactively reduce rights attached to a license you have already purchased.

17. Governing law and disputes

These Terms are governed by the laws of [YOUR COUNTRY], without regard to conflict-of-law rules. The courts of [YOUR JURISDICTION] have exclusive jurisdiction, except that:

If you are a consumer, you may also bring proceedings in the courts of your country of residence, and you keep the protection of the mandatory consumer law of that country.
Either party may seek injunctive relief in any competent court to protect intellectual property rights.

Before starting formal proceedings, please write to us — most disputes are a support ticket in disguise.

18. General

Entire agreement. These Terms, together with the Privacy Policy, are the whole agreement between us regarding the Software.
Severability. If a provision is found unenforceable, the rest remains in force and the unenforceable provision is limited to the minimum extent necessary.
No waiver. Our failure to enforce a provision is not a waiver of it.
Assignment. You may not assign these Terms without our written consent. We may assign them in connection with a merger, acquisition or sale of assets.
Force majeure. Neither party is liable for delay caused by events beyond its reasonable control.

19. Contact

Questions about these Terms, refunds, or licensing:
350400341@qq.com
[YOUR FULL LEGAL NAME]
[YOUR REGISTERED ADDRESS]
[YOUR COUNTRY]

See also: Privacy Policy · Pricing · Product home