Windows7 system cancels booting

Windows7 system cancels booting CTRL+ALT+DEL login method:
Control panel →Administrative tools →Local security policy →Local strategy →Security options →Interactive login: no need to press CTRL +ALT+DEL→ is enabled.
windows7 optimization settings:
1, start & mdash; & mdash; control panel & mdash; & mdash; keyboard & mdash; & mdash; speed & mdash; & mdash; repeat delay & mdash; & mdash; pull to the shortest.
2, start & mdash; — control panel & mdash; & mdash; mouse & mdash; & mdash; pointer options & mdash; & mdash; move & mdash; & mdash; pull to the fastest.
3, Start & mdash; & mdash; Control Panel & mdash; & mdash; Date & Time & mdash; & mdash; Internet Time & mdash; & mdash; Modify Settings & mdash; & mdash; Synchronize with Internet Time Server & mdash; & mdash;
4, Start & mdash; & mdash; Control Panel & mdash; & mdash; System & mdash; & mdash; Remote Settings & mdash; & mdash; Remote & mdash; & mdash; Allow remote assistance to link this computer & mdash; & mdash;
5, system protection & mdash; & mdash; configuration & mdash; & mdash; close system protection & mdash; & mdash; restore point & ldquo; delete & rdquo;.
6, advanced & mdash; & mdash; start and fault repair & mdash; & mdash; system failure & mdash; & mdash; the following two hooks are removed. If it is a dual system, you can choose which system to use as the default startup item here, the time is generally set to 3 & mdash; & mdash; 5 seconds.
7, Start & mdash; & mdash; Control Panel & mdash; & mdash; System & mdash; & mdash; Performance Information & Tools & mdash; & mdash; Advanced Tools & mdash; & mdash; Here you can see a lot of options, the one I use the most is the last one Item: Generate System Health Report —— From here you can see the various problems that exist in the system.
8, start & mdash; & mdash; run & mdash; & mdash; enter “ msconfig & rdquo; carriage & mdash; & mdash; boot & mdash; & mdash; advanced options & mdash; & mdash; CPU number selection 2 (dual-core selection 2, quad-core 4 ).