Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Backup question (more or less)

02 Jun 2015   #1

windows 7 Home Premium
Backup question (more or less)

This is a silly question, hence the subject line!

I have a built-in slot for an SD card in my laptop with an SD card in it. I have some 500 pictures on my hard drive which I wish to copy onto the SD card. When I start the copy process I get:
8 hours remaining - 30 seconds later it changes to:
2 minutes, 45 seconds remaining - 20 seconds later it changes to:
less than one minute remaining.
and bada-bang, the job is done in less than 2 minutes.

My question (idiotic, I know) but how the heck does the computer estimate the original 8 hours anyway? Even my lawyer's estimates of his fees are closer to his final charges than that: 8 hours to 2 minutes.

My System SpecsSystem Spec
02 Jun 2015   #2
Lady Fitzgerald

Win 7 Ultimate 64 bit

I get the same thing. I don't how the computer estimates time remaining but I've learned to ignore it. If I'm moving a large amount of data, I just start it, then walk away to do something more important, such as a bathroom break, fix and eat a snack, go to bed, etc. depending on how much data is involved. It's not worth worrying about.
My System SpecsSystem Spec
07 Jun 2015   #3

Windows 7 Ultimate x64

Mandatory xkcd comic about the subject.

The related explain xkcd entry gives some light on why such things happen:

This is because Windows bases its estimate on the latest file transfer rate, which exaggerates short-term fluctuations
Which is totally reasonable based on everything we see with such file copies. That behavior would only make sense when copy goes at a constant speed, which rarely happens in practice.

Bottom line, if you want somewhat accurate estimates, you must use a serious file manager or copy program and not Windows Explorer.
My System SpecsSystem Spec


 Backup question (more or less)

Thread Tools

Similar help and support threads
Thread Forum
(windows Backup) deleting old backup states simple question
I got a simple question, let me explain it like an example: Let's say I backup 100GB of data with Windows Backup and over the time where I do all my backups there is like only 30GB of data which changed from those 100GB and also new files were added. Now my external drive is full. When I now delete...
Backup and Restore
Backup question for 32 to 64 bit
Right now I have Vista Home Premium 32bit as an operating system. I've found that my computer is 64 bit capable so I'd like to upgrade to Window 7 64 bit so that I can run some newer programs that only come in 64 bit. First, I'm no computer geek but I'm not the village idiot either. I...
Backup and Restore
Backup Question
Today was one of those days where I had a epic fail moment. Till today I was carefree about backups, system restore etc. But I've realized today that these things are important. I have a friend who is good with computers and suggested me a few things to take care from next time. What happened...
Backup and Restore
Backup question
I have a scheduled weekly computer backup to my hard drive, but how do I backup one or a few folders to the drive, every day? I'm sure it's simple, I just can't find out how. Thanks.
Backup and Restore
I got a question (about backup, of course)
First off, I am a new owner (3 days ago) of a Windows 7-64bit PC, and of course I got some questions. I Googled and browsed alot of responses from this forum about the "create a system image" topic, and I (Mr. Nontechsavvy) am still confused if what I have done will work or not, in case of...
Backup and Restore

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 03:30.
Twitter Facebook Google+