Find your problem below — most are solved in a minute or two without emailing anyone.
- My key says "Invalid license key"
- The app won't open
- It says my licence is active on another PC
- My PC wakes itself up from sleep
- I want to cancel my subscription
- I want a refund
- None of these — I need to email you
My key says "Invalid license key"
The bundle gives you four separate keys — one per app — and they are not interchangeable. There is a key for PC Tweaks, a key for KBM Tweaks, a key for Network Optimizer and a key for CleanPC. Each app only accepts its own. Putting the PC Tweaks key into KBM Tweaks gives you "Invalid license key", and the key is not faulty — it is just in the wrong app.
So if a key is rejected: try each of the other three before anything else. That is what the rejection usually means, and it is the single most common thing people write to us about.
- Paste the key rather than typing it, and check no space came along at either end.
- The licence box wants the key from your purchase — not your hardware ID. The app shows a hardware ID for its own licensing; it is not something you type into the key field.
Lost the keys, or never found the email
All four keys live in your purchase portal, and you can open it yourself at any time:
It has to be that address — the portal finds your order by it.
All four keys are listed there, along with your downloads and your billing.
The app won't open
Almost always antivirus. Our builds are not code-signed, so Windows Defender and third-party antivirus have nothing to check them against — and each app does something that looks, from the outside, like the behaviour of malware:
- KBM Tweaks writes keyboard and mouse settings into the registry and compiles a small helper at runtime to apply them.
- PC Tweaks writes to the registry and starts a .NET bridge process.
- CleanPC deletes files.
- Network Optimizer does none of those, which is why it is usually the one that still opens. If it is the only one that opens, you have your answer — it is antivirus, not your licence.
Work down this list in order:
Windows Security → Virus & threat protection → Protection history. Find the blocked item and choose Allow or Restore.
Virus & threat protection → Manage settings → Exclusions → Add an exclusion → Folder, and pick the JINSHI installation folder. This stops it being taken again.
Right-click the app → Run as administrator. The apps make system-level changes and will not get far without it.
If you run Norton, McAfee, Avast, Bitdefender, Kaspersky or similar, it has its own quarantine or vault — Defender's Protection history will not show what it took. Restore from there and add the same folder exclusion.
If files were deleted rather than blocked, an exclusion on its own will not bring them back. Add the exclusion first, then reinstall.
If none of that works: turn real-time protection off, open and activate the app once, then turn protection back on. Do that last rather than first, and only for the minute it takes.
It says my licence is active on another PC
Each licence allows four activations. Every PC you activate on uses one of them — so moving to a new machine, or rebuilding an old one, spends an activation rather than swapping it over. Four is meant to be enough for a new PC or two along the way.
If you have genuinely used all four, email us with the address you purchased with and we will sort it out. There is no self-service reset, so this one does need a message from you.
My PC wakes itself up from sleep
If you used KBM Tweaks a while ago, this was probably us. An older tweak enabled wake-on-USB so a mouse or keyboard press would wake the machine. That tweak has been removed from the app, but removing it does not change the Windows setting back — the devices it armed stay armed until someone disarms them.
Open Command Prompt or PowerShell as administrator and run:
powercfg /devicequery wake_armed— lists every device currently allowed to wake the PC.powercfg /devicedisablewake "Device Name"— stops one device from waking it.powercfg /deviceenablewake "Device Name"— allows it again, if you change your mind.
Copy each device name exactly as the first command prints it, quotes included.
We deliberately do not undo this for you. The old tweak armed every device that matched, and from our side there is no way to tell which of those you set on purpose — plenty of people want the keyboard to wake the PC and only want the network adapter to stop. Reversing the lot would be us changing settings you chose. So it is the three commands above, device by device, your call.
I want to cancel my subscription
Cancel it yourself in the same portal as your keys: polar.sh/jinshi/portal/request — enter your purchase email, click the login link, and cancel from your billing there. Cancelling stops future renewals.
One-time purchases have no subscription to cancel; those licences are yours to keep.
I want a refund
If the app will not load on your PC, or your licence key is still unused, we refund you in full — and activating a key does not by itself end that right, so ask anyway if the app would not run for you. Email us from the address you purchased with. If you are a consumer in the UK or the EU, you also have statutory cancellation rights, which this policy does not remove. Full terms are on the Refund Policy page.
None of these — I need to email you
Email Support
For technical issues, licensing questions, or general inquiries, please email us directly.
jinshitweaks@gmail.comAverage response time: < 24 Hours
Two things in the first email save a round trip: the address you purchased with, and which app is giving you trouble.
Our Documentation and FAQ cover installation, activation and what each tweak does.