Free Microsoft Confirmation ID (GetCID) & PIDKey Checker
Generate your 48-digit Confirmation ID (CID) from any 54 or 63-digit Installation ID, check live Windows & Office Product Keys (PIDKey / MAK Count), and verify Office 365 Redeem Keys in 2 seconds.
All-in-One Microsoft Activation & Product Key Verification Suite
Everything technicians, system builders, and everyday users need to verify and activate Microsoft Windows, Office, and Server licenses online for free.
Free GetCID Generator (IID to CID)
When Windows or Office shows "Activate by telephone" or error 0xC004C008, run slui 4 to view your 54-digit or 63-digit Installation ID. Paste it into our GetCID Generator to receive your 8-block Confirmation ID (A–H) in under 2 seconds.
PIDKey Product Key Checker
Not sure what edition a 25-character key belongs to or how many activations are left? Our PIDKey Checker tests keys against 146 official Microsoft PKeyConfig certificates, displaying the exact Edition, Part Number, Remaining MAK Count, and live Error Code.
Office & M365 Redeem Key Checker
Before binding an Office Retail or Home & Business key at setup.office.com, verify its live status in our Redeem Key Checker. It safely checks Microsoft's OLSC service to confirm if the token is Valid, Already Used, or Scrapped.
Microsoft PIDKey, GetCID & Redeem Error Codes Explained
Quick reference guide for all status codes returned by Microsoft's activation and licensing servers.
| Status / Code | Tool | Server Meaning & Recommended Action |
|---|---|---|
| Online / Valid | PIDKey / Redeem | The product key is genuine, active, and ready for direct online activation or redemption at setup.office.com. |
| 0xC004C008 | PIDKey Checker | The key is genuine and eligible for Phone Activation. Copy your Installation ID from slui 4 and paste it into the GetCID Generator tab above to activate for free! |
| 0xC004C003 / 0x67 / 0xC004C060 | PIDKey / GetCID | The product key has been permanently blocked by Microsoft. Neither online nor phone activation will work. Replace the key with a genuine license from ResellKeys.com. |
| 0xC004C020 / 0x7F | PIDKey / GetCID | The Volume MAK key has reached 0 remaining activations and its telephone override limit is locked. |
| Used / InvalidToken | Redeem Checker | The Office redeem key has already been redeemed to a Microsoft account or was cancelled by the issuer. |
Frequently Asked Questions (GetCID, PIDKey & Redeem Checker)
Answers to common questions about Microsoft telephone activation and product key checking.
Why is GetCID.cc completely free while other GetCID and PIDKey websites charge money?
Most GetCID and PIDKey portals charge per check or require paid API tokens. GetCID.cc is powered by Cloudflare's global edge network and supported by non-intrusive sponsorships from verified software partners, allowing us to offer unlimited Confirmation ID generation, PIDKey checking, and Office Redeem checks 100% free.
Does checking a key in PIDKey Checker or Redeem Key Checker consume an activation?
No! Checking MAK remaining counts, reading PKeyConfig product descriptions, or checking Office Redeem Key status via OLSC is completely read-only and never consumes an activation or binds your key to any account.
What should I do if PIDKey Checker returns 0xC004C008?
Error code 0xC004C008 is actually good news! It means your Retail or OEM key is genuine and not blocked—it simply requires telephone activation. Install the key on your PC, open the Activation Wizard (slui 4), copy the 63-digit Installation ID, and paste it into our GetCID Generator tab to get your Confirmation ID immediately.
What if my key shows 0xC004C003 (Blocked), 0xC004C020 (0 MAK Count), or "Key already redeemed"?
When Microsoft's licensing server reports that a key is blocked (0xC004C003 / 0x67), has 0 activations remaining, or has already been redeemed, that key can no longer be activated. You can get a genuine replacement Windows or Office key with instant online activation from our sponsor ResellKeys.com.