Windows 7 forum

Question

Windows 7 Permissions arrgh

by llewyn / January 16, 2012 10:34 AM PST

I have a strange problem on my boot drive.

It is an 80gb intel ssd, not that should make any difference.

There seems to be some permissions problem with copying files to this drive or sometimes with creating new files.

When I install software I typically get an error message when the installation program trys to create menu shortcuts. The rest of the installations run ok.

Also, sometimes the computer refuses to let me copy files to this drive. I have tried changing permissions but I admit this is a confusing area for me and I am no expert. Can someone give me a hand?

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All Answers

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Answer
Are you sure
by Jimmy Greystone / January 16, 2012 10:43 AM PST

Are you sure it's a permissions issue and not just a bad drive?

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Answer
SSD
by MarkFlax Forum moderator / January 17, 2012 8:18 PM PST

You say the SSD shouldn't make any difference, but hold on there.

SSDs are great for fast read/write access but SSDs have an inherent problem and it's one I believe is going to become more apparent and more prolific as more people purchase computers with them.

It's this. SSDs have problems deleting data and/or re-writing data. The architecture of the drive is such that individual data bits cannot be changed without a 're-write' of the whole 512KB block of data where it is stored.

There's more about this here; http://en.wikipedia.org/wiki/TRIM (Beware, Wikipedia is shut down for the day as a protest against SOPA. If you click that link today, (Jan 18 2012), you will see a black screen with a message on it. It should be back tomorrow).

Windows 7 has TRIM controls that help mitigate against this, but the inherent low level file management on SSDs is still present and the problems are likely, in my view, to develop. There's more about Windows 7 and its TRIM controls here;
http://www.bit-tech.net/hardware/storage/2010/02/04/windows-7-ssd-performance-and-trim/1

All that said, you mention an error message, but not what it says. Apart from SSD file delete there may be some simpler resolution but we need to know what the error message says.

Mark

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Permissions errors
by llewyn / February 14, 2012 5:06 AM PST
In reply to: SSD

There are a number of different error messages, but they all have one thing in common. They have to do with creating, deleting or changing a file in either the program data folder or the program files folder.

This interferes with installation or upgrading of many applications.

Ideas?

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As an author of some apps.
by R. Proffitt Forum moderator / February 14, 2012 5:20 AM PST
In reply to: Permissions errors

I need to hear when this happens to MY apps. Did you tell the maker/author about this?

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