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Windows 7: W7 64 TRIM for SSD


13 Mar 2011   #1

SSDs: Windows 7 HP 64, HDDs: Vista HP 64
 
 
W7 64 TRIM for SSD

I know Windows 7 supports TRIM but I need to if it is working on my SSD/HDD setups. I have a laptop and a PC where both have Windows 7 64 installed on an SSD and Vista 64 installed on an HDD. When running Windows 7, if I run fsutil.exe behavior query DisableDeleteNotify, it shows Windows 7 has TRIM activated. TRIM will only work when the SSD is idle. So, when I boot and use Vista from the HDD is TRIM working on the idle SSD? Even if Windows 7 isn't up and running?

My System SpecsSystem Spec
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13 Mar 2011   #2
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Hello 5er driver, and welcome to Seven Forums.

Sorry, but no. Trim support is not available in Vista. You will only have Trim support for the SSD while running Windows 7.
My System SpecsSystem Spec
13 Mar 2011   #3

SSDs: Windows 7 HP 64, HDDs: Vista HP 64
 
 

Brink, how can I have the SSD be idle after booting from it? Isn't there always something running in the background?

Thanks.
My System SpecsSystem Spec
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13 Mar 2011   #4
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Since the SSD is your Windows 7 drive, then yeah there will always be something that will be running in the background while you have Windows 7 running. However, this is not going to hurt the SSD.
My System SpecsSystem Spec
13 Mar 2011   #5

SSDs: Windows 7 HP 64, HDDs: Vista HP 64
 
 

But will TRIM still run?
My System SpecsSystem Spec
13 Mar 2011   #6
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

Yes, but only while Windows 7 is running.
My System SpecsSystem Spec
13 Mar 2011   #7
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Well, the way I understand it, the /7 Trim command goes to the SSD controller when records are deleted. The controller then clears the space that corresponds to those deleted records. It does that when it is not busy servicing requests from the OS and independent from the OS. So the "idle" remark pertains more to the SSD controller rather than to the /7.

So it should do that even when /7 is not active. However, we are talking about milliseconds. By the time you switch the OS, it is probably long done.

Btw: you do not want to write or delete anything to the SSD from Vista. In that case the SSD controller would have no knowledge about deleted records. That means next time you write to that free space, it will take twice as long.
My System SpecsSystem Spec
13 Mar 2011   #8

SSDs: Windows 7 HP 64, HDDs: Vista HP 64
 
 

Thank you everyone for the info.
My System SpecsSystem Spec
13 Mar 2011   #9
Microsoft MVP

64-bit Windows 8.1 Enterprise
 
 

You're welcome. I'm glad that we were able to help.
My System SpecsSystem Spec
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 W7 64 TRIM for SSD




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