Overheating during intense decompression can trigger this error as the system throttles the CPU.
: If your RAM is insufficient, Windows uses "paging files" on your disk. Go to Advanced System Settings > Performance Settings > Advanced tab > Virtual Memory and manually set the initial and maximum size (e.g., 8192 MB for 8GB RAM). unarc.dll returned an error code 11 windows 11
Windows 11 aggressively scans any file that tries to extract or write itself to disk. This scanning can interrupt unarc.dll ’s memory allocation. unarc.dll returned an error code 11 windows 11