Qee lub sij hawm koj yuav tsum tau downgrade ob peb versions ntawm .NET kom tau ib yam dab tsi ua hauj lwm. Tab sis koj ua li ntawd li cas?
.NET Framework yog dab tsi
Raws li tus neeg siv Windows, tej zaum koj yuav muaj tsawg kawg ib zaug los hla cov lus ".NET Framework". Nws yog software tsim los ntawm Microsoft uas tso cai rau koj los tsim thiab khiav C#, C ++, F# thiab Visual Basic programs. Qhov tseeb version ntawm .NET yog 4.8, tab sis koj lub computer tej zaum yuav xav tau ib tug laus version ntawm .NET (xws li .NET 3.5) los khiav ib co kev siv.
Hmoov zoo, txhim kho .NET version 3.5 yog qhov yooj yim heev. Yog li, cia peb tshawb xyuas seb yuav ua li cas thiaj kuaj xyuas yog tias koj lub khoos phis tawj twb muaj .NET 3.5 ntsia, thiab yuav ua li cas yog tias nws tsis ua.
Puas yog .NET Framework 3.5 ntsia koj lub computer?
Ua ntej peb mus rau kev txhim kho .NET 3.5, nws yog ib lub tswv yim zoo los xyuas seb koj puas tau nruab nws yav dhau los:
- Nyem rau Yeej + R , Thiab hom tswj , thiab nias Sau pib lub Control Vaj Huam Sib Luag.
- Nyem Software > cov kev pab cuam thiab cov yam ntxwv .
- Los ntawm txoj cai pane, xaiv Tig Windows nta rau lossis tawm .
- Koj yuav pom. NET 3.5 Nyob rau sab saum toj ntawm cov npe Windows nta. Yog tias lub thawv nyob ib sab ntawm .NET 3.5 yog xim dub, nws yuav raug ntsia.
Daim ntawv ceeb toom yuav ua li cas muaj ib tug swb hais tias no version Xws li .NET 2.0 thiab 3.0 . Qhov no txhais tau tias thaum koj nruab .NET Framework 3.5, koj kuj tseem tuaj yeem khiav txhua daim ntawv thov uas xav tau .NET 2.0 thiab 3.0.
Yog tias lub thawv nyob ib sab ntawm .NET Framework 3.5 tsis yog xim dub, nws txhais tau tias nws tsis tau nruab rau hauv koj lub computer. Yog li ntawd, koj tuaj yeem siv ib qho ntawm peb txoj hauv qab no los nruab rau hauv koj lub cev.
Nruab .NET 3.5 los ntawm Windows Features
Yog tias koj ua raws cov kauj ruam saum toj no kom pom tias koj lub khoos phis tawj muaj .NET 3.5, tsuas yog ua raws cov kauj ruam hauv ntu dhau los kom nkag mus. Windows Features .
Txhua yam koj yuav tsum tau ua tom ntej yog kos lub thawv ib sab ntawm .NET Framework 3.5 thiab ntaus OK tawm ntawm qhov rais. Windows yuav pib txhim kho .NET Framework 3.5 tam sim ntawd, tab sis koj yuav tsum rov pib dua koj lub khoos phis tawm kom tiav qhov kev teeb tsa.
.NET Framework offline nruab
Yog tias koj xav rub tawm ncaj qha, Microsoft muaj Offline installer rau yav dhau los versions ntawm .NET moj khaum ntawm nws dotnet. Txawm li cas los xij, ua ntej koj pib thiab rub tawm cov ntaub ntawv, nco ntsoov tias koj rub tawm qhov kev txhawb nqa ntawm .NET.
Hmoov zoo, Microsoft ua rau nws yooj yim mus rub tawm ib qho kev txhawb nqa. Thaum koj mus txog nplooj ntawv rub tawm, lub vev xaib yuav cia li nthuav tawm cov npe ntawm cov ntawv txhawb nqa thiab zais cov tsis txhawb nqa. NET 3.5 teev raws li kev txhawb nqa, raws li qhia hauv qab no.
Nws yog ib qho tseem ceeb rau rub tawm ib qho kev txhawb nqa, raws li Microsoft tau teeb tsa "qhov kawg ntawm kev txhawb nqa" hnub rau nws cov software, tom qab ntawd cov software loj yuav tsum tsis txhob tso tawm tshiab rau nws. Hmoov zoo, thaum lub sijhawm sau ntawv, .NET 3.5 muaj hnub tas sijhawm teem rau Lub Kaum Hli 10, 2028, yog li koj muaj sijhawm txaus los siv nws.
Thaum koj tau downloaded lub offline installer rau koj xaiv version, koj npaj txhij pib lub installation. Feem ntau, installation yuav tsum du. Qee zaum, txawm li cas los xij, tus installer offline tsuas yog tsis xav ua si pob.
Nruab .NET Framework siv Command Prompt lossis PowerShell
Yog tias koj xav kom ua tiav sai, koj tuaj yeem siv Command Prompt lossis PowerShell los rub tawm thiab nruab .NET Framework 3.5 nrog ib qho lus txib. Nov yog yuav ua li cas:
- Nyem rau Yeej + R , Thiab hom cmd , thiab nias Ctrl + ua haujlwm + nkag Txhawm rau khiav qhov kev hais kom ua kom siab. Yog tias koj xav siv PowerShell, ntaus Powershell es tsis txhob cmd .
- Khiav ib qho ntawm ob qho lus txib nram qab no nyob ntawm seb koj puas siv Command Prompt lossis PowerShell: Command Prompt:
Dism /online /Enable-Feature /FeatureName:"NetFx3"Powershell:
Enable-WindowsOptionalFeature -Online -FeatureName "NetFx3" - Qhov no yuav pib lub installation. Thaum cov txheej txheem installation tiav lawm, koj tuaj yeem tawm ntawm Command Prompt lossis PowerShell.
Paub meej tias ua tiav kev teeb tsa ntawm .NET Framework 3.5
Thaum lub .NET Framework raug teeb tsa, koj tuaj yeem txheeb xyuas qhov kev txhim kho ua tiav los ntawm kev khiav ib qho lus txib hauv qhov kev hais kom ua kom siab.
- Nyem rau Yeej + R , Thiab hom cmd , thiab nias Ctrl + ua haujlwm + nkag Txhawm rau khiav qhov kev hais kom ua kom siab.
- Ua raws li cov lus txib hauv qab no:
reg query "HKLM\SOFTWARE\Microsoft\Net Framework Setup\NDP" /s - Koj yuav pom tag nrho cov versions ntawm .NET Framework ntsia koj lub cev.
.NET Framework 3.5 teeb meem kev teeb tsa
Muaj ntau qhov laj thawj vim li cas koj thiaj yuav ntsib teeb meem thaum txhim kho .NET Framework 3.5. Piv txwv li, yog tias koj daim ntawv theej ntawm Windows tsis muaj ntawv tso cai, .NET Framework yuav tsis raug ntsia rau hauv koj lub cev. Tib txoj kev tawm yog qhib koj daim ntawv tam sim no lossis tau txais daim ntawv tso cai Windows 10 tshiab.
Cov txheej txheem kev teeb tsa tuaj yeem qee zaum xav kom koj rub tawm ob peb lub Windows hloov tshiab, txawm hais tias qhov no yog qhov teeb meem loj dua nrog cov tshiab tshiab ntawm .NET Framework tshwj tsis yog koj tsis tau hloov kho koj lub PC txij li lub hnub nyoog pob zeb. Nws yuav muab koj tus lej KB uas koj tuaj yeem siv los ua ib qho kev siv thiab nruab cov kev hloov tshiab no.
Yog tias koj tau yuav koj lub khoos phis tawj txhua lub sijhawm hauv 3.5 xyoo dhau los, koj lub khoos phis tawj tsis zoo li txhawb .NET Framework XNUMX. Txawm li cas los xij, koj tuaj yeem mus tom ntej thiab xyuas seb cov versions ntawm .NET Framework yuav khiav ntawm koj lub operating system .
Lub .NET moj khaum khiav ntawm txhua lub Windows operating systems los ntawm Windows Vista mus ntxiv (xws li Windows 7, 8, 8.1, thiab 10), txawm hais tias nws tsis yog preinstalled nrog Windows Vista.
Peb cia siab tias koj yuav tuaj yeem nruab .NET 3.5 ua tiav yam tsis muaj teeb meem. Tam sim no koj yuav tsum muaj peev xwm khiav txhua qhov kev pab cuam uas xav tau 3.5. Koj yuav tsum tau ua kom paub tseeb tias koj muaj qhov tseeb version ntawm .NET Framework ntsia, tau kawg.
Yog koj ntsib teeb meem. Sau rau hauv cov lus thiab peb yuav teb koj thiab daws tag nrho koj cov teeb meem.
