Check (select Windows 7 or 8). Check Run this program as an administrator . 5. Re-register Unarc.dll and ISDone.dll
Security software flags the decompression process as suspicious and blocks it. decompression failed with error code-11
Are you seeing this error while installing a , or does it happen with every software installation you attempt? Check (select Windows 7 or 8)
Type in the Windows search bar, right-click, and Run as Administrator . Type regsvr32 isdone.dll and press Enter. Type regsvr32 unarc.dll and press Enter. Re-register Unarc
Antivirus programs often mistake the intense CPU and disk activity of decompression for a malware attack.
If the system libraries are the culprit, re-registering them via the Command Prompt can reset their functionality.
Missing or corrupted Unarc.dll or ISDone.dll files in your Windows System32 or SysWOW64 folders. How to Fix Decompression Failed Error -11 1. Increase Virtual Memory (Page File)