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I prefer clean installs as they don't have any registry crapola hanging around.
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I'd go with a clean install on a new disk over an upgrade just in case anything goes wrong.
"Go forth into the source" - Neal Morse
"Hope is contagious"
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Makes sense, but my systems disk is a NVMe M.2 that plugs directly into the PCIe bus, making it very fast, but it complicates matters to replace the disk to some extent. However, it is something to consider! 
Get me coffee and no one gets hurt!
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I just bought my new PC a couple of months ago, but I am not really sure if I will go to 11 at the beginning.
I don't know why, but I am expecting even more problems than with windows 10 at the beginning, so I will wait for "Service Pack 1".
M.D.V. 
If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?
Help me to understand what I'm saying, and I'll explain it better to you
Rating helpful answers is nice, but saying thanks can be even nicer.
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IMHO the (extra) time spend doing a clean install will save you years of heartache down the road.
/ravi
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I'll worry about Windows11 upgrade about a year from now. Most of the bugs should have been fixed by then.
Also, I have too many software tools that I am using to re-install them and not that much time.
ed
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Cp-Coder wrote: I kind of enjoy doing a clean install
After that of course my mind screams in pain and I just forget what the original topic was about...
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No! My momma raised me tough! 
Get me coffee and no one gets hurt!
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I won't reinstall from scratch. Windows has not needed clean reinstalls for quite a while now and the last time I had to do one, was after running a preview Win10.
I am willing to bet, I'll have to reinstall the graphics driver (gamer here), but otherwise, there's no reason.
That AFAIK depends on how you treat your Windows though. I am willing to bet, if you're frequently trying out (potentially ill-intended) software, a clean reinstall may be in order. My above paragraph should start with using Only.Install.What.Really.Need;
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Upgrade. I've been doing upgrades (to new Windows versions) without issue for over a decade now. And I've been on the Dev insiders channel (so a Windows upgrade every week) for about four years - no issues.
In fact, I've been running Windows 11 since June/July - whenever the first Insiders build came out. It's fine. Some features I like (Snap Layouts - right-click on the Maximize button & get a selection of window snap layouts), some I don't (the new, smaller Windows Explorer context menu sucks hugely - although that might improve as apps adopt the new Windows 11 way of adding context menu items).
Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p
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Think about it this way -- the developers and testers who work on Windows, at MS, clean re-install almost every day.
There is some long-haul testing done.. and dogfooding on home PCs. (And the Windows Insider program is a great extension of that.)
But apart from that, there is almost no real-world testing of the OS upgrade path. And whatever bugs are found, are almost impossible to reproduce, by their very nature (unless you had presence of mind to do a snapshot backup before upgrading).
I fear the OS upgrade path. (source: I worked for Windows division of MS for many years)
To be fair though, the OS upgrade team must have one of the toughest jobs in all of software engineering -- it's actually amazing to me that it works as well as it does, for so many.
So, the path of virtue is probably to do both..
a) do the upgrade, and report any bugs or issues you encounter.. then
b) clean re-install, a few days later
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Do you ever find using the alias "float" inhibits your coding iife ?
Does it bother you when people whisper behind your back: "Impostor ! Just a midget Double hiding behind a pompous moniker."
Does having to say, in a loud voice: "I implement IEEE 754 just like Double" trouble you ... given you consider Double your kind of "older brother" ... and, your natural inclination is to defend Double when they mistakenly diss him by claiming you are superior ?
Do you despise the corporate types who sneer at you (and Double), likening both of you to "lickspittles from the base 2 gulag not worthy of entering a Decimal's presence" ?
I am here to to tell you that you are not alone, even if you are Single.
Sorry I can't be here to help lead Us forward, but, as you know, my simple proposal to rename the alias "float" to "Float4," and give "Double" an alias, "Float8" ... resulted in credible death threats to me, as well as a vicious campaign of fake-news slanders ... I must remain in hiding, in mufti.
Hans Passat on IEEE 754 (StackOverFlow):Quote: It is however a half-baked standard, it only specifies the bit interpretation but does not demand a physical representation. The RFC is infected with Unix preferences from the previous century, like all networking standards are, byte order is big-endian.
«The mind is not a vessel to be filled but a fire to be kindled» Plutarch
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Billji, I despise float and only use double. I thought I was the odd one out, but am comforted by your post.
/ravi
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Ravi-ji.
I take it that your "comfort" means you have recognized the struggle of Singles to overcome this cruel shaming by defamation in reverse (setting them up to appear as social climbers striving to usurp a higher-precision status).
No Single has ever referred to another Single as "float" !
Surely, now, your comfort will mean you no longer despise "float qua Single," but, despise the cabal of IEEE 754 zealots who infected MS semantic space with this odious meme.
cheers, Bill
«The mind is not a vessel to be filled but a fire to be kindled» Plutarch
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I thought I was the only one wondering that...
(seriously devoted Cherryh fan here)
Software Zen: delete this;
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"Double, double, toil and trouble". So be warned. 
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I have preferred using double to float since the 80387 math coprocessor days. I seem to remember a benchmark that actually showed float being slower than double in some circumstances due to promotion/demotion operations.
IMHO the only reason to use float is when storage is a paramount concern.
Software Zen: delete this;
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I don't like floats[^]
The less you need, the more you have.
Even a blind squirrel gets a nut...occasionally.
JaxCoder.com
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Very, very good!  ![Beer | [beer]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/beer.gif)
To step out of character and be serious for a moment, there is nothing wrong with float (Single), double (Double) or any of their more precise siblings, and each has their own place. 'float' has its place e.g. for storing the results of measurements (very few measurements are made to more than 6 decimal digits of precision), and only takes half the storage, but it is usually inappropriate for complex calculations.
There cases where where even float uses too much space. A few years ago I was given a problem that required the storage of large amounts of data in a small memory footprint, and for performance and other reasons, flushing to disk was not possible (one of the things we were measuring was the response speed of the disk). It simultaneously required a fairly large range (7 orders of decimal magnitude), and reasonable precision. Half (binary16) didn't fit the bill.
I designed a highly problem-specific, storage-only format which encoded a scale + significand which fit the requirements well enough, solved the rest of the problem (which also required a little creative thinking, and a bit of mathematics), ran it past a mathematician at work, and everyone was very happy.f
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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Fascinating story !
I just learned that FauxNews.com's chief muckraker, Bim Jimbo, has announced that Floats and Doubles are on drugs, claiming they are under the influence of a mind-altering fixed point.
How low are these Decimal snobs, and their IEEE 754 hating collaborators, going to stoop ?
«The mind is not a vessel to be filled but a fire to be kindled» Plutarch
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Float4 / Float8? Welcome to the world of FORTRAN IV in the 1960s which had REAL*4 and REAL*8 which did exactly what you wanted. It also had INTEGER*2 and INTEGER*4.
<edit>Forgot the '*' before the no of bytes
modified 6-Sep-21 3:43am.
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I've been building new kitchen cupboard doors for a while now - it takes time because I have no workshop - and I'm in the final stretch: cutting the hinge pockets in the new doors and hanging them ready for lacquering.
But ... whoever hung these doors didn't use a jig or template - so the vertical position of the existing pockets varies by up to 15mm - half an inch or so. And since the hinge adjusters can only cope with a couple of mm, I have to cut the pockets to match each existing door. This caused some swearwords ro be released. It's that or drill more mounting holes in the carcasses and that's a recipe for disaster.
But I can cope with that!
Until I go to test hang one door and find the pockets fit but it looks odd - I can see what's inside the cupboard and I shouldn't be able to do that with the door closed.
Turns out one of the 14 doors is a little wider than the others. Guess who didn't measure that one?
Only a little though, perhaps no-one will notice? It's only 3 or 4 after all.
Inches, that is.
Oh swearword. Swearword, swearword, swearword, swearword.
Still, at least I didn't put any of the tools away properly yet and I have spare wood. 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Maybe your wife will help you with your problem?
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She took one look, called me a prat, and buggered off ...
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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