Why experts recommend clean install?

[Michael Bob[_2_]]

Isn't enough to upgrade and delete Windows.old folder? Why should we do a
clean install (2 times)?

[Big Al[_5_]]

Michael Bob wrote on 8/9/2015 11:05 PM:
> Isn't enough to upgrade and delete Windows.old folder? Why should we do a clean install (2 times)?
IMHO:
The general consensus is that an upgrade of any kind leaves a lot of bloat behind. A clean install produces a leaner
and cleaner system. It's a bit of a personal preference in some ways, if you keep a clean system it may not be as
necessary. I did a virgin load of win7 home and then immediately upgraded. System still seems to be clean and runs
fine. I did reload video drivers and AV software but other than that it was fine. I had seen a lot of suggestions
on newsgroups that uninstalling those two items before upgrade usually solved possible conversion errors. Especially AV.

[Jim k]

You should not delete windows.old folder because it's a needed system
folder.
..
"Michael Bob" escreveu na mensagem ...

Isn't enough to upgrade and delete Windows.old folder? Why should we do a
clean install (2 times)?

[Mr. Man-wai Chang]

On 10/8/15 11:05 AM, Michael Bob wrote:
> Isn't enough to upgrade and delete Windows.old folder? Why should we do
> a clean install (2 times)?

You never know what stuffs were left after an upgrade.

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[Ken Blake, MVP[_4_]]

On Mon, 10 Aug 2015 04:05:01 +0100, "Michael Bob"
> wrote:

> Isn't enough to upgrade and delete Windows.old folder? Why should we do a
> clean install (2 times)?


*Some* experts recommendation doing a clean installation. Others
don't.

I recommend against clean installations. It's much easier to do an
upgrade, and in my opinion it's best to try the upgrade and go to a
clean installation only if the result of the upgrade is problems. But
note that you should be prepared for the clean installation before
doing the upgrade, just in case.

I'm running Windows 10 on this machine. It started out as Windows
Vista, and was upgraded to 7, 8, 8.1, and now 10.

One caveat: if you are having problems, an upgrade should be avoided.
In general, an upgrade is more likely to worsen problems than to solve
them.

Regarding Windows.old: it's to let you go back to the prior version.
If you are sure you never will, it's OK to delete it.

[lew]

On 2015-08-10, Michael Bob > wrote:
> Isn't enough to upgrade and delete Windows.old folder? Why should we do a
> clean install (2 times)?
>

They don't do "real" work so that the "experts" don't have to
re-install all the apps as required; "restores" don't just restore
an app's registery but everything in the registery. Also apps'
licenses must be found for re-installs of apps when doing
a "clean" system install & then there is also some activation needed
of some reinstalled apps.

If you don't have to do much re-install, then it is OK; but if you
have all your apps in the "default" C: drive partition.........
Of course, then there is the matter of your environment path
that need to be updated.....

[. . .winston]

Ken Blake, MVP wrote on 08/10/2015 12:05 PM:

>
> Regarding Windows.old: it's to let you go back to the prior version.
> If you are sure you never will, it's OK to delete it.
>

On Win10, the Go Back feature to use Windows.old is only for 30 days
after the upgrade. 30 days after the upgrade the Windows.old folder is
purged and the Go Back feature will not be a selectable option (i.e. it
will also be removed).

The lack of Go Back though does not preempt the user from reverting back
using other methods (Prior O/S MSFT created System Image and Recovery
Media, 3rd party imaging [e.g. Acronis, Macrium, etc.), OEM provided or
user created Restore to Factory DVD's)
- Note: Some OEM's may not be able to Restore to Factory due to the
method the OEM created the Recovery Partition. Also some user created
Factory Restore DVD sets may not work if the original OEM created
partition is not intact as-shipped (i.e. changed by Windows, user
deleted, etc.)

--
...winston
msft mvp windows experience

[Bucky Breeder[_4_]]

.. . .winston > posted
this via :

>> Regarding Windows.old: it's to let you go back to the prior version.
>> If you are sure you never will, it's OK to delete it.
>>
>
> [Snipped the stuff everybody already said...]
>
> - Note: Some OEM's may not be able to Restore to Factory due to the
> method the OEM created the Recovery Partition. Also some user created
> Factory Restore DVD sets may not work if the original OEM created
> partition is not intact as-shipped (i.e. changed by Windows, user
> deleted, etc.)

Ohhh Geezus... Wadda are you prattling aboot now??? Give some specific
examples to cite this supposed epiphany you're now having about all the
things that might not work if...

Go back to yer leetle girl's club and yer imaginary tea parties... or at
least TRY to stay on topic.

HTH

--

I AM Bucky Breeder, (*(^; and,
It's like Yogi Berra always used to say:
"The future ain't what it used to be!"

<http://tinyurl.com/ocnqvgq>