Prallels 26
I have installed it
Windows 11 is registrated
and Defender is turned off

wanted start a KeyGEN and I get the message

#Error 13
--> Internal Error(13)

tried different steps , don't find a solution

after two hours I installed windows 10 again
and get the KeyGEN to work

but couldn't get off the "windows soon expired"
before I had done a view times , now I dont get it off anymore
also the activation trick not work anymore in same windows 10, which worked before

microsoft is really a nightmare

have anybody a solution to turn off the error 13 issue??? thanks for help
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it's fixed
the fail and general Stress from WNDOWS wasn't never from Parallels, with this I have no problems
"Parallels Desktop Activation Tool SIP OFF" packed into Application, then from there Install the patch and Parallels works fluid, after you can remove it. An I put parallels in the easy firewall "radio silence"

i installed windows11 again, did the main things to get register it and turn off this shit Defender
(seems I deleted maybe to much before, and tried to much stuff) KeyGEN's works again

i also tested crossover. which also had worked, thanks for the tip (they have improved it)

 

Last edited: Sep 6, 2025 at 4:07 AM

Even when defender is "turned Off" via the menus the real time junk is always still on (or it will turn itself back on) especially on a reboot of the machine, it will always re-enable itself. The best solution to your problem - remove defender completely from the system and if your machine is one that must be internet connected, install an A/V that you can control. The autonomous microsoft updater will also attempt to re-enable all that junk as well.

If the win build is not activating with MAS hwid (for whatever reason) use offline KMS with the Heu activator. It will get you activated and remove the "windows not activated" garbage. I have found MAS to be somewhat unpredictable once it fails.

 

My experience was that I managed to install Parallels and even patch it, but every two weeks an update came and the patch was gone again. I had to redo the whole process over and over.

I also downloaded, installed, and patched it on my Mac – it worked fine at first. The problem, however, is that cracked versions stop working after about two weeks. No matter what firewall you use or which ports you block, if Parallels can’t connect to its servers for a certain time, the “timebomb” triggers and the software stops working. Then you have to patch it again.

This is really annoying, especially when you just open your Mac to quickly get something done and realize it doesn’t work anymore. You then have to patch again, search for fixes, and waste more time.

In the end, I gave up and bought the software. Since then, I’ve had peace of mind. That’s why I wouldn’t recommend patching Parallels – it simply doesn’t work reliably in the long run.

 

If it is only for a keygen, use Crossover. If you are trying to actually run Windows and programs, get a different version of Windows (xlite, ec) to use as the VM. If you are on an Apple Silicon Mac, Make sure you’re using the right Windows ISO for your Mac (ARM for Apple Silicon).

This is all I am saying about it.

 

Oh I've been through the wringer with Parallels, circa 2023/2024. I gave up on it. This version 26 that dropped today though seems different. Installed right off the bat, no patching required. Appears to have been cracked by the Chinese. I have Parallels.com firewalled. Let's see how long this lasts.