Windows 7 64-bit Copying files to external usb drive - files becomes corrupted.

Hi All,
I am getting intermittent problem with regards to copying files to usb external hard drive from my laptop.
When file is copied to external drive, the file becomes corrupt from the external drive.
I have to repeat around 2 to 3 times or more to re-copy the file again until file is not corrupted.
Appreciate of any help.
Below is my system info:
Using Win 7 Ultimate 64-bit 4 gb of ram. 
OS Name Microsoft Windows 7 Ultimate
Version 6.1.7601 Service Pack 1 Build 7601
Other OS Description  Not Available
OS Manufacturer Microsoft Corporation
System Name GIBBY-LAPTOP
System Manufacturer Sony Corporation
System Model VGN-SR26GN_B
System Type x64-based PC
Processor Intel(R) Core(TM)2 Duo CPU     P8400  @ 2.26GHz, 2267 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date American Megatrends Inc. R1130Y1, 8/28/2009
SMBIOS Version 2.4
Windows Directory C:\Windows
System Directory C:\Windows\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "6.1.7601.17514"
User Name Gibby-Laptop\Gibby
Time Zone Malay Peninsula Standard Time
Installed Physical Memory (RAM) 4.00 GB
Total Physical Memory 3.97 GB
Available Physical Memory 2.60 GB
Total Virtual Memory 7.93 GB
Available Virtual Memory 6.05 GB
Page File Space 3.97 GB
Page File C:\pagefile.sys

Ok, lets be brief.
This problem is annoying me for years. It is totally reproducible although random. It happens when copying to external drives (mainly USB) when they are configured for "safe removal". I have had issues copying to NTFS and FAT32 partitions. I have
had issues using 4 different computers, from 7 years old to brand new ones, using AMD or intel chipsets and totally different USB controllers, and using many different USB sticks, hard disks, etc. The only common thing in those computers is Windows 7 x64 and
the external drives optimization for "safe removal". Installing Teracopy reduces the chances of data corrpution, but does not eliminate them completely. The only real workaround (tested for 2 years) is activating the write cache in the device manager
properties of the drive. In that way, windows uses the same transfer mechanisms as for the internal drives, and everything is OK.
MICROSOFT guys, there is a BIG BUG in windows 7 x64 external drives data transfer mechanism. There is a bug in the cache handling mechanism of the safe removal function. Nobody hears, I've been years talking about this in forums. It is a very dangerous bug
because it is silent, and many non professional people is experiencing random errors in their backup data. PLEASE, INVESTIGATE THIS. YOU NEED TO FIX SUCH IMPORTANT BUG. IT IS UNBELIEVABLE THAT IT IS STILL THERE SINCE 2009!!!
Hope this helps.

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