Error IS-BV02

Development Getting Started & Setup
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1

Hello everyone when installing Unreal Engine, an error IS-BV02.
Installation on a disk with NTFS file system.
Checking for errors did and did not help.
What to do?

2

Can you try to install the Unreal Engine on another drive if possible, just to rule out network errors?

But first of all;

  1. Are you using a 64 bit operating system?
  2. Did you try the recommended steps at Epic Games Support | Get Help & Customers Service
3

And have you tried to install on another disk?

4

I have an NTFS file system on all disks.
1.Yes 64 Bit
2. Yes, I used this manual.)

5

Yes, I tried to install on all 3 drives that are on my computer

6

I have the same problem trying to install 4.20 preview 1.
I did a memtest and hdds tests, all comes back fine.

7

Same problem here with 4.20 preview 1.
Tried a fresh install - uninstall launcher - install new launcher - new download of 4.20.
Win10 x64, NTFS C drive. Tested on E drive (NTFS) - now getting IS-MF01-5-5.

No problems with the hardware
4.19.2 running smooth

8

I’ve tried on all 4 of my HDDs, getting this error is a pain.
I’ve installed newer versions of Unity and other games, yet this version 4.20p1 is still giving me this error.
Tested ram again, and HDDs again.

9

In my case, it turned out it was Bitdefender who was blocking a UE install file (flagged as virus). After adding UE to the whitelist all installs fine.

10

I have the same problem but it is only for a certain game everything else installs and updates perfectly normal