Do I have to format my whole HDD having 4 partitions or only :C Drive to install fresh 64-Bit from 32-Bit?

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ShieldX10

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Jul 1, 2014
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I have a laptop which came with 32-Bit Windows 7 32-Bit Pre-Installed , having a 64-Bit processor (i5-3317U) . That's an Ultra-Book having 4GB Ram (2.60-3.40 Usable) , I want to Install a 64-Bit Windows 7 Ultimate and I have the disc , same as I installed on my Desktop (Now my desktop have 8.1 Pro so i don't have that Product key activated). I know 4GB is recommended for 64-Bit OS but I want to use x64 software(s) and I have a lot of them , but not x86(32-Bit) . My company also codes software with 64 Bit compatibility, and the drivers also support mostly x64 (But also released for x86 , I know that). Point -:

-If I do a fresh Install will my HDD be formatted? I have 4 partitions : C,D,E and F.
-i have a 1TB 7200 RPM HDD with a 60GB SSD .
-Can i successfully upgrade from 32 Bit to 64 without losing files?
 
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only the partition that you will install your new OS to will be affected. the other partitions will stay as they are BUT i you installed some games on different partition, you will loose all registry keys from main C: partition... so best to reinstall everything to be safe
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tomashen

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Nov 10, 2014
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only the partition that you will install your new OS to will be affected. the other partitions will stay as they are BUT i you installed some games on different partition, you will loose all registry keys from main C: partition... so best to reinstall everything to be safe
 
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ShieldX10

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Jul 1, 2014
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Thanks ; and I don't have any games and all, I have my Desktop for that with GTX 970 . I only have some software and codes related to my office work . And the software are x86 (32-Bit) so i may not run them in x64 . I'll backup C: .Thanks ;)
 
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ShieldX10

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Jul 1, 2014
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Thanks ; and I don't have any games and all, I have my Desktop for that with GTX 970 . I only have some software and codes related to my office work . And the software are x86 (32-Bit) so i may not run them in x64 . I'll backup C: .Thanks ;)
 
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tomashen

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Nov 10, 2014
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yeah so long there isnt any installed stuff, any installed programs will loose registry keys because registry is stored on main C: drive part...so once you reinstall you will have clean registry. but it doesnt really affect anything , mostly you need registry keys for softwares that auto update etc, but these days minority of softwares use registry for that sort of stuff anymore :) but source codes and images and videos ,music,files etc will be just fine

32bit software will run fine under 64bit.
some softwares DO however require a 64bit installation because of like i said, registry issues. but you will know when that happens :)
 
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