How To Fix Unarc Dll Returned An Error Code 1 =link=

If the error persists, proceed to Method 1.

If error code 1 does not appear in Safe Mode, then a third-party program is the cause. Perform a clean boot to identify it (see Step 8). how to fix unarc dll returned an error code 1

In the Admin Command Prompt, run: regsvr32 unarc.dll and regsvr32 isdone.dll . If the error persists, proceed to Method 1