Interface frozen During gaming session caused by Avast Premier protection

It has come to my attention that Avast premier causes the windows 7 SP1 UI to freeze when All shields are enabled, typically about 10 minutes after boot with the soe sheilftware (and shields) enabled upon statup. This happens whilst I Play a game and have chrome opened downloading a file at the same time

I have tried reinstalling the product but to no avail

Disabling all shields seems to solve the problem

Any advice will be greatly appreciated


System Specs:

Summary
Operating System
Windows 7 Ultimate 64-bit SP1
CPU
Intel Core i7 6700HQ @ 2.60GHz 40 °C
Skylake 14nm Technology
RAM
16.0GB Dual-Channel Unknown @ 1063MHz (15-15-15-36)
Motherboard
Micro-Star International Co. Ltd. MS-16J5 (U3E1) 36 °C
Graphics
Generic PnP Monitor (1920x1080@48Hz)
Intel HD Graphics 530 (MSI)
2047MB NVIDIA GeForce GTX 960M (MSI) 34 °C
ForceWare version: 381.65
SLI Disabled
Storage
931GB Hitachi HGST HTS721010A9E630 SCSI Disk Device (SATA) 38 °C
Optical Drives
HL-DT-ST DVDRAM GUD0N SCSI CdRom Device
Audio
Realtek High Definition Audio
Operating System
Windows 7 Ultimate 64-bit SP1
Computer type: Notebook
Installation Date: 8/01/2017 7:37:09 PM
Serial Number: XXXX-XXXX-XXXX-XXXX
Windows Security Center
User Account Control (UAC) Disabled
Windows Update
AutoUpdate Not configured
Windows Defender
Windows Defender Enabled
Firewall
Firewall Enabled
Display Name Avast Antivirus
Antivirus
Avast Antivirus
Antivirus Disabled
Virus Signature Database Up to date
Malwarebytes
Antivirus Enabled
Virus Signature Database Up to date

Follow instructions: https://www.avast.com/faq.php?article=AVKB33#artTitle

[UPDATE]
After some testing i found that the file System Sheild causes this problem