bcryptprimitives.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026)

⚠️ Important Notice: Optimize your system security with bcryptprimitives.dll—essential cryptographic functions for secure password storage. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	other	️ Not detected
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	ℹ️ Unverified	File Hash protection is missing.
File size	36.1 kb.	37013 bytes.

Hashes:

MD5: 6507075ecb85aff8213b32a14df5c8a7
SHA-1: 31fbacb9bd4d42d621c3af12d270a25d950b4aa1
SHA-256: af788f98c04a5f0dc122377be7763a89eae2dc8f459a07958ebc4ac480ade3ae
SHA-512: c58ad0a14b1842b5e59f191f70974b6d94341c78454939c4afb91e964dbb74f2c8ee7d1b290a1670a2df1a36139cd562407354eaa4dbe16f7c7ce309ec940c69

How to fix errors bcryptprimitives.dll without downloading files.

The file bcryptprimitives.dll is a critical Windows system component handling cryptographic operations. If it is missing or corrupted, you should never download it from third-party websites, as these files often contain malware.

Here is how to fix the error safely using built-in Windows tools.

1. Run SFC and DISM Scan

Windows has built-in repair tools that scan for corrupted system files and automatically replace them with official versions.

Press the Windows Key.
Type cmd.
Right-click Command Prompt and select Run as administrator.
Type sfc /scannow and press Enter. Wait for it to finish.
Next, type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
Restart your computer.

2. Install Pending Windows Updates

Since this is a core system file, Microsoft frequently updates it via Windows Update. Replacing a broken version often just requires a system update.

Open Settings (Press Windows Key + I).
Go to Update & Security (or Windows Update on Windows 11).
Click Check for updates.
Install all available updates and restart your PC.

3. Reregister the DLL File

If the file exists but Windows cannot read it, re-registering it in the system directory can fix the communication gap.

Open Command Prompt as administrator (see Step 1).
Type regsvr32 bcryptprimitives.dll and press Enter.
Click OK on the pop-up confirmation and restart.

4. Run Check Disk (Chkdsk)

File corruption can happen due to hard drive sectors failing. Running a disk check can isolate and repair these errors.

Open Command Prompt as administrator.
Type chkdsk C: /f /r and press Enter (Replace C: with your main drive letter if different).
Type Y to schedule the scan for the next restart.
Restart your computer to let the scan run.

📊 Diagnostics Tool: Verify Your `bcryptprimitives.dll` File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Other versions:
️ bcryptprimitives.dll 10.0.19041.5438 32-bit (x86) | ️ bcryptprimitives.dll 10.0.19041.5007 64-bit (x64)