Image 2021 Build 39216 Patch B 2021 [updated] — Acronis True
If you are using any earlier version of Acronis True Image 2021, applying Patch B is highly recommended—if not essential. Before discussing the patch specifics, it’s important to understand the core capabilities of Acronis True Image 2021: 1. Full Image Backup The flagship feature remains the ability to create a byte-for-byte snapshot of your entire system—OS, applications, settings, and files—without interrupting your work. 2. Active Disk Cloning Build 39216 includes improved sector-by-sector cloning, allowing you to replace a failing HDD with a new SSD without reinstalling Windows. 3. Ransomware Protection (Acronis Active Protection) A dual-layer protection system that uses heuristic analysis to detect and block ransomware in real-time, then automatically restores any encrypted files. 4. Cloud Backup (Acronis Cloud) Up to 5TB of secure, geo-redundant cloud storage for offsite backups. 5. Universal Restore Restore a system image to dissimilar hardware—perfect for migrating to a new PC or recovering after a motherboard swap. What Does “Patch B” (Build 39216) Actually Fix? The original release of Build 39216 had some teething problems. Patch B was rolled out in 2021 to resolve the following known issues: ✅ Fixed: Backup Failures with VSS Writers Many users reported backup failures due to Volume Shadow Copy Service (VSS) writer timeouts. Patch B introduces better timeout handling, ensuring that SQL Server, Exchange, and SharePoint backups complete successfully. ✅ Fixed: Slow Performance on NVMe Drives An algorithm error in earlier builds caused poor backup speeds on certain PCIe 4.0 NVMe SSDs. Build 39216 Patch B optimizes I/O requests, increasing speeds by up to 30% on high-performance drives. ✅ Fixed: Acronis Active Protection False Positives Earlier builds occasionally flagged legitimate software (including some antivirus suites and system tools) as ransomware. Patch B updates the protection heuristics and whitelist, dramatically reducing false positives. ✅ Fixed: Cloud Backup Sync Errors Some users experienced “sync stuck” issues when backing up to Acronis Cloud. This patch resolves threading conflicts in the cloud synchronization engine. ✅ Security Patches (CVE-2021-31203 & CVE-2021-31204) Two critical privilege escalation vulnerabilities (discovered in early 2021) were patched in this release. Updating to Build 39216 Patch B is a security imperative. ✅ Improved Windows 10 21H1 Compatibility With the release of Windows 10 May 2021 Update (21H1), some drivers failed. Patch B adds full native support for the 21H1 kernel and driver changes. System Requirements for Build 39216 Patch B To run Acronis True Image 2021 Build 39216 Patch B without issues, ensure your system meets these requirements:
| Component | Minimum Requirement | |-----------|---------------------| | OS | Windows 7 SP1, Windows 8.1, Windows 10 (all builds up to 21H2), Windows 11 | | CPU | 1 GHz or faster (x86 or x64) | | RAM | 2 GB (4 GB recommended for system image creation) | | Storage | 4 GB for installation + space for backups | | Display | 1024×768 or higher | | Other | .NET Framework 4.7.2 or later | acronis true image 2021 build 39216 patch b 2021
Keywords: Acronis True Image 2021 Build 39216 Patch B 2021, download Acronis True Image 2021 build 39216, Acronis patch B fixes, True Image 2021 update 2, Acronis 39216 installation guide, Acronis Cyber Protect vs True Image 2021. If you are using any earlier version of
Yes. Any valid license for the 2021 version will activate Build 39216 Patch B. Conclusion Acronis True Image 2021 Build 39216 Patch B (2021) represents a mature, secure, and high-performing landmark in Acronis’s backup software lineage. While newer products exist, this build remains an excellent choice for users who value stability, speed, and offline license ownership. go to Backup >
net stop vss net start vss Then reboot and retry the backup. Cause: The patch might not have applied correctly. Fix: Download the full Build 39216 installer from your Acronis account and perform a repair installation (run installer > select “Repair”). Issue: Slow cloud backup speeds Cause: ISP throttling or incorrect cloud region. Fix: In Acronis, go to Backup > Cloud > Settings and manually change the datacenter region to the closest one to you (e.g., AWS US-East, EU-Frankfurt). Comparison: Build 39216 Patch B vs. Earlier Builds | Feature / Fix | Build 39161 (Initial) | Build 39216 (Pre-Patch) | Build 39216 Patch B | |---------------|----------------------|-------------------------|---------------------| | Windows 21H1 support | Buggy (BSOD risk) | Partial | Full | | Ransomware false positives | High | Medium | Very Low | | NVMe backup speed | ~150 MB/s | ~200 MB/s | ~280 MB/s | | Cloud sync stability | Unstable | Improved | Stable | | Security patches | Missing | Missing | Included | | VSS timeout errors | Frequent | Occasional | Rare |
Predominantly fixes and stability improvements. No major new features were introduced after the initial 2021 release.
vssadmin list writers If any writer fails, run:
